diff --git a/dist/nz-tour.css b/dist/nz-tour.css
index 69f0e2a..3846cc6 100755
--- a/dist/nz-tour.css
+++ b/dist/nz-tour.css
@@ -23,7 +23,7 @@ nz-tour #nzTour-box-wrap {
 nz-tour #nzTour-box {
   width: 250px;
   min-height: 69px;
-  max-height: 120px;
+  max-height: 500px;
   padding: 0.5em;
   background: #fff;
   -webkit-box-shadow: 0 6px 19px 2px rgba(0,0,0,0.14);
@@ -182,7 +182,7 @@ nz-tour #nzTour-content {
   height: 100%;
   max-height: 104px;
   overflow-x: hidden;
-  overflow-y: scroll;
+  overflow-y: auto;
   position: relative;
   border-bottom: solid 32px transparent;
   -webkit-box-shadow: inset 0 -20px 20px -20px rgba(0,0,0,0.2);
diff --git a/dist/nz-tour.js b/dist/nz-tour.js
index 0be9243..4b046f8 100755
--- a/dist/nz-tour.js
+++ b/dist/nz-tour.js
@@ -24,7 +24,9 @@
                 finishText: 'Finish',
                 animationDuration: 400,
                 placementPriority: ['bottom', 'right', 'top', 'left'],
-                disableHotkeys: false
+                disableHotkeys: false,
+                showPrevious: true,
+                showNext: true
             },
             current: false,
             body: angular.element('body'),
@@ -263,8 +265,8 @@
                 '           <div id="nzTour-inner-content"></div>',
                 '        </div>',
                 '        <div id="nzTour-actions">',
-                '            <button id="nzTour-previous" ng-show="view.step > 0" ng-click="previous()">{{view.previousText}}</button>',
-                '            <button id="nzTour-next" ng-show="view.step >= 0" ng-click="next()" class="success">{{view.nextText}}</button>',
+                '            <button id="nzTour-previous" ng-show="view.step > 0 && view.showPrevious" ng-click="previous()"> ng-click="previous()">{{view.previousText}}</button>',
+                '            <button id="nzTour-next" ng-show="view.step >= 0 && view.showNext" ng-click="next()" class="success">{{view.nextText}}</button>',
                 '        </div>',
                 '    </div>',
                 '</div>',
@@ -391,9 +393,11 @@
                             prevent(e);
                             return;
                         case 27:
-                            $scope.stop();
-                            prevent(e);
-                            return;
+                            if (!config.disableEscExit) {
+                                $scope.stop();
+                                prevent(e);
+                                return;
+                            }
                         case 38:
                         case 40:
                             onWindowScrollDebounced();
@@ -482,7 +486,9 @@
                         step: step,
                         length: steps.length,
                         previousText: config.previousText,
-                        nextText: step == steps.length - 1 ? config.finishText : config.nextText
+                        nextText: step == steps.length - 1 ? config.finishText : config.nextText,
+                        showNext: steps[step].showNext === undefined ? config.showNext : steps[step].showNext,
+                        showPrevious: steps[step].showPrevious === undefined ? config.showPrevious : steps[step].showPrevious
                     };
                     //Don't mess around with angular sanitize for now. Add compile and sanitize later...
                     els.innerContent.html(steps[step].content);
diff --git a/dist/nz-tour.min.css b/dist/nz-tour.min.css
index 21b5241..e90c036 100755
--- a/dist/nz-tour.min.css
+++ b/dist/nz-tour.min.css
@@ -1 +1 @@
-nz-tour *{-webkit-box-sizing:border-box;box-sizing:border-box}nz-tour.hidden #nzTour-box{-webkit-transform:scale(0);transform:scale(0)}nz-tour.hidden .nzTour-masks .mask{opacity:0;}nz-tour #nzTour-box-wrap{position:fixed;width:auto;height:auto;left:50%;top:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);display:block;z-index:999999999999}nz-tour #nzTour-box{width:250px;min-height:69px;max-height:120px;padding:.5em;background:#fff;-webkit-box-shadow:0 6px 19px 2px rgba(0,0,0,0.14);box-shadow:0 6px 19px 2px rgba(0,0,0,0.14);-webkit-border-radius:2px;border-radius:2px;-webkit-transition:all 0.3s ease;transition:all 0.3s ease;-webkit-transform:scale(1);transform:scale(1);}nz-tour #nzTour-box.dark-box{background:rgba(0,0,0,0.8);color:#fff;}nz-tour #nzTour-box.dark-box #nzTour-close{background:rgba(255,255,255,0.81);color:#000;}nz-tour #nzTour-box.dark-box #nzTour-close:hover{background:#ee342f;color:#fff}nz-tour #nzTour-box.dark-box #nzTour-step{background:#fff;color:rgba(0,0,0,0.8)}nz-tour #nzTour-box.dark-box #nzTour-length{background:rgba(255,255,255,0.2);color:#bababa}nz-tour #nzTour-box.dark-box #nzTour-tip.left{left:5px}nz-tour #nzTour-box.dark-box #nzTour-tip.center{left:50%}nz-tour #nzTour-box.dark-box #nzTour-tip.right{right:5px}nz-tour #nzTour-box.dark-box #nzTour-tip.side.center{top:50%}nz-tour #nzTour-box.dark-box #nzTour-tip.side.top{top:5px}nz-tour #nzTour-box.dark-box #nzTour-tip.side.bottom{bottom:5px}nz-tour #nzTour-box.dark-box #nzTour-tip.top{top:-5px;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:5px solid rgba(0,0,0,0.8)}nz-tour #nzTour-box.dark-box #nzTour-tip.bottom{bottom:-5px;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid rgba(0,0,0,0.8)}nz-tour #nzTour-box.dark-box #nzTour-tip.side.left{left:-10px;border-top:5px solid transparent;border-bottom:5px solid transparent;border-right:5px solid rgba(0,0,0,0.8)}nz-tour #nzTour-box.dark-box #nzTour-tip.side.right{right:-10px;border-top:5px solid transparent;border-bottom:5px solid transparent;border-left:5px solid rgba(0,0,0,0.8)}nz-tour #nzTour-tip{position:absolute;display:block;width:0;height:0;}nz-tour #nzTour-tip.hidden{opacity:0;}nz-tour #nzTour-tip.vertical.left{left:5px}nz-tour #nzTour-tip.vertical.center{left:50%}nz-tour #nzTour-tip.vertical.right{right:5px}nz-tour #nzTour-tip.vertical.top{top:-5px;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:5px solid #fff}nz-tour #nzTour-tip.vertical.bottom{bottom:-5px;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid #fff}nz-tour #nzTour-tip.horizontal.top{top:5px}nz-tour #nzTour-tip.horizontal.center{top:50%}nz-tour #nzTour-tip.horizontal.bottom{bottom:5px}nz-tour #nzTour-tip.horizontal.left{left:-5px;border-top:5px solid transparent;border-bottom:5px solid transparent;border-right:5px solid #fff}nz-tour #nzTour-tip.horizontal.right{right:-5px;border-top:5px solid transparent;border-bottom:5px solid transparent;border-left:5px solid #fff}nz-tour #nzTour-close{position:absolute;top:-7px;right:-7px;width:14px;height:14px;background:rgba(0,0,0,0.8);-webkit-border-radius:100%;border-radius:100%;font-size:8px;color:#fff;cursor:pointer;-webkit-transition:all 0.2s ease;transition:all 0.2s ease;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:box;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center;-webkit-box-pack:center;-webkit-justify-content:center;justify-content:center;}nz-tour #nzTour-close:hover{background:#ec1d18}nz-tour #nzTour-content{width:100%;height:100%;max-height:104px;overflow-x:hidden;overflow-y:scroll;position:relative;border-bottom:solid 32px transparent;-webkit-box-shadow:inset 0 -20px 20px -20px rgba(0,0,0,0.2);box-shadow:inset 0 -20px 20px -20px rgba(0,0,0,0.2);padding:0 4px;font-size:14px}nz-tour #nzTour-step,nz-tour #nzTour-length{width:24px;height:24px;color:#fff;position:absolute;bottom:.7em;font-size:12px;font-weight:bold;-webkit-border-radius:50px;border-radius:50px;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:box;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center;-webkit-box-pack:center;-webkit-justify-content:center;justify-content:center}nz-tour #nzTour-step{background:rgba(0,0,0,0.7);left:.7em;z-index:1}nz-tour #nzTour-length{background:#ccc;left:2.2em;z-index:0}nz-tour #nzTour-actions{position:absolute;bottom:.5em;right:.5em;height:24px;}nz-tour #nzTour-actions button{height:100%;border:none;-webkit-border-radius:2px;border-radius:2px;font-size:.75em;padding:4px 7px;color:#fff;background-color:#868686;}nz-tour #nzTour-actions button:hover{background-color:#6b6b6b}nz-tour #nzTour-actions button[disabled]{opacity:.2;}nz-tour #nzTour-actions button[disabled]:hover{opacity:.2;}nz-tour #nzTour-actions button:focus,nz-tour #nzTour-actions button:focus:active{outline:none}nz-tour #nzTour-actions button.success{background-color:#60bd68;}nz-tour #nzTour-actions button.success:hover{background-color:#43a14b}nz-tour #nzTour-actions button.danger{background-color:#ec1d18;}nz-tour #nzTour-actions button.danger:hover{background-color:#c01410}nz-tour #nzTour-previous{margin-right:.5em}nz-tour .nzTour-masks .mask{position:fixed;z-index:99999999;}nz-tour .nzTour-masks .mask.top,nz-tour .nzTour-masks .mask.bottom{width:100%;height:0;left:0}nz-tour .nzTour-masks .mask.left,nz-tour .nzTour-masks .mask.right{width:0;height:100%;top:0}nz-tour .nzTour-masks .mask.top{top:0}nz-tour .nzTour-masks .mask.bottom{bottom:0}nz-tour .nzTour-masks .mask.left{left:0}nz-tour .nzTour-masks .mask.right{right:0}
\ No newline at end of file
+nz-tour *{-webkit-box-sizing:border-box;box-sizing:border-box}nz-tour.hidden #nzTour-box{-webkit-transform:scale(0);transform:scale(0)}nz-tour.hidden .nzTour-masks .mask{opacity:0;}nz-tour #nzTour-box-wrap{position:fixed;width:auto;height:auto;left:50%;top:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);display:block;z-index:999999999999}nz-tour #nzTour-box{width:250px;min-height:69px;max-height:500px;padding:.5em;background:#fff;-webkit-box-shadow:0 6px 19px 2px rgba(0,0,0,0.14);box-shadow:0 6px 19px 2px rgba(0,0,0,0.14);-webkit-border-radius:2px;border-radius:2px;-webkit-transition:all 0.3s ease;transition:all 0.3s ease;-webkit-transform:scale(1);transform:scale(1);}nz-tour #nzTour-box.dark-box{background:rgba(0,0,0,0.8);color:#fff;}nz-tour #nzTour-box.dark-box #nzTour-close{background:rgba(255,255,255,0.81);color:#000;}nz-tour #nzTour-box.dark-box #nzTour-close:hover{background:#ee342f;color:#fff}nz-tour #nzTour-box.dark-box #nzTour-step{background:#fff;color:rgba(0,0,0,0.8)}nz-tour #nzTour-box.dark-box #nzTour-length{background:rgba(255,255,255,0.2);color:#bababa}nz-tour #nzTour-box.dark-box #nzTour-tip.left{left:5px}nz-tour #nzTour-box.dark-box #nzTour-tip.center{left:50%}nz-tour #nzTour-box.dark-box #nzTour-tip.right{right:5px}nz-tour #nzTour-box.dark-box #nzTour-tip.side.center{top:50%}nz-tour #nzTour-box.dark-box #nzTour-tip.side.top{top:5px}nz-tour #nzTour-box.dark-box #nzTour-tip.side.bottom{bottom:5px}nz-tour #nzTour-box.dark-box #nzTour-tip.top{top:-5px;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:5px solid rgba(0,0,0,0.8)}nz-tour #nzTour-box.dark-box #nzTour-tip.bottom{bottom:-5px;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid rgba(0,0,0,0.8)}nz-tour #nzTour-box.dark-box #nzTour-tip.side.left{left:-10px;border-top:5px solid transparent;border-bottom:5px solid transparent;border-right:5px solid rgba(0,0,0,0.8)}nz-tour #nzTour-box.dark-box #nzTour-tip.side.right{right:-10px;border-top:5px solid transparent;border-bottom:5px solid transparent;border-left:5px solid rgba(0,0,0,0.8)}nz-tour #nzTour-tip{position:absolute;display:block;width:0;height:0;}nz-tour #nzTour-tip.hidden{opacity:0;}nz-tour #nzTour-tip.vertical.left{left:5px}nz-tour #nzTour-tip.vertical.center{left:50%}nz-tour #nzTour-tip.vertical.right{right:5px}nz-tour #nzTour-tip.vertical.top{top:-5px;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:5px solid #fff}nz-tour #nzTour-tip.vertical.bottom{bottom:-5px;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid #fff}nz-tour #nzTour-tip.horizontal.top{top:5px}nz-tour #nzTour-tip.horizontal.center{top:50%}nz-tour #nzTour-tip.horizontal.bottom{bottom:5px}nz-tour #nzTour-tip.horizontal.left{left:-5px;border-top:5px solid transparent;border-bottom:5px solid transparent;border-right:5px solid #fff}nz-tour #nzTour-tip.horizontal.right{right:-5px;border-top:5px solid transparent;border-bottom:5px solid transparent;border-left:5px solid #fff}nz-tour #nzTour-close{position:absolute;top:-7px;right:-7px;width:14px;height:14px;background:rgba(0,0,0,0.8);-webkit-border-radius:100%;border-radius:100%;font-size:8px;color:#fff;cursor:pointer;-webkit-transition:all 0.2s ease;transition:all 0.2s ease;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:box;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center;-webkit-box-pack:center;-webkit-justify-content:center;justify-content:center;}nz-tour #nzTour-close:hover{background:#ec1d18}nz-tour #nzTour-content{width:100%;height:100%;max-height:104px;overflow-x:hidden;overflow-y:auto;position:relative;border-bottom:solid 32px transparent;-webkit-box-shadow:inset 0 -20px 20px -20px rgba(0,0,0,0.2);box-shadow:inset 0 -20px 20px -20px rgba(0,0,0,0.2);padding:0 4px;font-size:14px}nz-tour #nzTour-step,nz-tour #nzTour-length{width:24px;height:24px;color:#fff;position:absolute;bottom:.7em;font-size:12px;font-weight:bold;-webkit-border-radius:50px;border-radius:50px;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:box;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center;-webkit-box-pack:center;-webkit-justify-content:center;justify-content:center}nz-tour #nzTour-step{background:rgba(0,0,0,0.7);left:.7em;z-index:1}nz-tour #nzTour-length{background:#ccc;left:2.2em;z-index:0}nz-tour #nzTour-actions{position:absolute;bottom:.5em;right:.5em;height:24px;}nz-tour #nzTour-actions button{height:100%;border:none;-webkit-border-radius:2px;border-radius:2px;font-size:.75em;padding:4px 7px;color:#fff;background-color:#868686;}nz-tour #nzTour-actions button:hover{background-color:#6b6b6b}nz-tour #nzTour-actions button[disabled]{opacity:.2;}nz-tour #nzTour-actions button[disabled]:hover{opacity:.2;}nz-tour #nzTour-actions button:focus,nz-tour #nzTour-actions button:focus:active{outline:none}nz-tour #nzTour-actions button.success{background-color:#60bd68;}nz-tour #nzTour-actions button.success:hover{background-color:#43a14b}nz-tour #nzTour-actions button.danger{background-color:#ec1d18;}nz-tour #nzTour-actions button.danger:hover{background-color:#c01410}nz-tour #nzTour-previous{margin-right:.5em}nz-tour .nzTour-masks .mask{position:fixed;z-index:99999999;}nz-tour .nzTour-masks .mask.top,nz-tour .nzTour-masks .mask.bottom{width:100%;height:0;left:0}nz-tour .nzTour-masks .mask.left,nz-tour .nzTour-masks .mask.right{width:0;height:100%;top:0}nz-tour .nzTour-masks .mask.top{top:0}nz-tour .nzTour-masks .mask.bottom{bottom:0}nz-tour .nzTour-masks .mask.left{left:0}nz-tour .nzTour-masks .mask.right{right:0}
\ No newline at end of file
diff --git a/dist/nz-tour.min.js b/dist/nz-tour.min.js
index 85e76a2..5cb7d93 100644
--- a/dist/nz-tour.min.js
+++ b/dist/nz-tour.min.js
@@ -1 +1 @@
-!function(){function t(e){return angular.forEach(arguments,function(o){o!==e&&angular.forEach(o,function(o,r){e[r]&&e[r].constructor&&e[r].constructor===Object?t(e[r],o):e[r]=o})}),e}function e(t,e,o,n){t[_removeEventListener](a+e,"wheel"==s?o:r,n||!1)}function o(t,e,o,n){t[i](a+e,"wheel"==s?o:r,n||!1)}function r(t){!t&&(t=window.event);var e={originalEvent:t,target:t.target||t.srcElement,type:"wheel",deltaMode:"MozMousePixelScroll"==t.type?0:1,deltaX:0,deltaZ:0,preventDefault:function(){t.preventDefault?t.preventDefault():t.returnValue=!1}};return"mousewheel"==s?(e.deltaY=-1/40*t.wheelDelta,t.wheelDeltaX&&(e.deltaX=-1/40*t.wheelDeltaX)):e.deltaY=t.detail,callback(e)}var n=angular.module("nzTour",[]);if(n.factory("nzTour",["$q","$rootScope","$compile","$timeout",function(e,o,r,n){function i(t){return t||e.reject("No Tour Specified!"),t.steps.length||e.reject("No steps were found in that tour!"),T.current?s().then(function(){return u(t)}):u(t)}function s(){return m(0).then(function(){return g(!1)}).then(function(){return T.current.promise.reject(),T.current=!1,!0})}function a(){T.current&&x()}function l(){return T.current||T.current.reject(),m(1).then(w).then(function(){return T.current.step++,1}).then(h)}function f(){return m(-1).then(function(){return T.current.step>0?(T.current.step--,-1):e.reject(null)}).then(h)}function c(t){return t>0&&t<=T.current.tour.steps.length?m(0).then(function(){return T.current.step=t-1,0}).then(h):e.reject("Requested step not defined")}function u(o){o.config=t({},T.config,o.config);var r=function(t){if(!angular.isArray(t))return!1;for(var e=0;e<t.length;e+=1)if(-1===T.config.placementPriority.indexOf(t[e]))return!1;return!0};return r(o.config.placementPriority)||(o.config.placementPriority=T.config.placementPriority),angular.forEach(o.steps,function(t){t.placementPriority&&(r(t.placementPriority)||delete t.placementPriority)}),T.current={tour:o,step:0,promise:e.defer()},g(!0,o),h(),T.current.promise.promise}function g(t,o){return t?(T.box=angular.element(r('<nz-tour class="hidden"></nz-tour>')(T)),angular.element(T.body).append(T.box),T.box.removeClass("hidden"),e.when(null)):(T.box.addClass("hidden"),n(function(){T.cleanup()},T.current.tour.config.animationDuration))}function h(t){return d(t).then(p)}function d(t){return T.current.tour.steps[T.current.step].before?T.current.tour.steps[T.current.step].before(t):e.when(null)}function p(){return T.$broadcast("step",T.current.step),e.when(null)}function m(t){return T.current.tour.steps[T.current.step].after?T.current.tour.steps[T.current.step].after(t):e.when(null)}function w(){return T.current.step===T.current.tour.steps.length-1?v().then(function(){return e.reject("No more steps left")}):e.when(null)}function v(){return g(!1).then(function(){return T.current.promise.resolve(),T.current=!1,!0})}function x(){}function k(t,e){var o=!1;return function(){o||(t.call(),o=!0,n(function(){o=!1},e))}}function b(t,e,o){var r;return function(){var n=this,i=arguments,s=function(){r=null,o||t.apply(n,i)},a=o&&!r;clearTimeout(r),r=setTimeout(s,e),a&&t.apply(n,i)}}var T=o.$new();return angular.extend(T,{config:{mask:{visible:!0,visibleOnNoTarget:!1,clickThrough:!1,clickExit:!1,scrollThrough:!0,color:"rgba(0,0,0,.7)"},dark:!1,scrollBox:-1!=navigator.userAgent.indexOf("AppleWebKit")?"body":"html",previousText:"Previous",nextText:"Next",finishText:"Finish",animationDuration:400,placementPriority:["bottom","right","top","left"],disableHotkeys:!1},current:!1,body:angular.element("body"),box:!1,start:i,stop:s,pause:a,next:l,previous:f,gotoStep:c,throttle:k,debounce:b}),window.nzTour=T,T}]),n.directive("nzTour",["$q",function(t){return{template:['<div id="nzTour-box-wrap">','   <div id="nzTour-box">','        <div id="nzTour-tip" class="top center"></div>','        <div id="nzTour-step">{{view.step + 1}}</div>','        <div id="nzTour-length">{{view.length}}</div>','        <div id="nzTour-close" ng-click="stop()">&#10005</div>','        <div id="nzTour-content">','           <div id="nzTour-inner-content"></div>',"        </div>",'        <div id="nzTour-actions">','            <button id="nzTour-previous" ng-show="view.step > 0" ng-click="previous()">{{view.previousText}}</button>','            <button id="nzTour-next" ng-show="view.step >= 0" ng-click="next()" class="success">{{view.nextText}}</button>',"        </div>","    </div>","</div>",'<div class="nzTour-masks" ng-show="current.tour.config.mask.visible" ng-click="tryStop()">','    <div class="mask top" ng-style="{\'background-color\': current.tour.config.mask.color}"></div>','    <div class="mask right" ng-style="{\'background-color\': current.tour.config.mask.color}"></div>','    <div class="mask bottom" ng-style="{\'background-color\': current.tour.config.mask.color}"></div>','    <div class="mask left" ng-style="{\'background-color\': current.tour.config.mask.color}"></div>','    <div class="mask center"></div>',"</div>"].join(" "),link:function(e,o){function r(t){if(t.which>=49&&t.which<=57)return void e.gotoStep(t.which-48);switch(t.which){case 37:return e.previous(),void l(t);case 39:return e.next(),void l(t);case 27:return e.stop(),void l(t);case 38:case 40:return void L()}}function n(t){return t.stopPropagation(t),t.preventDefault(t),t.returnValue=!1,!1}function i(t){var e=M.masks_top.add(M.masks_right).add(M.masks_bottom).add(M.masks_left);t?(_=!0,e.css("transition","all "+x.animationDuration+"ms ease")):(_=!1,e.css("transition","all 0"))}function s(t){var e=M.wrap.add(M.box).add(M.tip);t?e.css("transition","all "+x.animationDuration+"ms ease"):e.css("transition","all 0")}function a(t){var e;e="DOMMouseScroll"==t.type?-40*t.detail:t.wheelDelta;var o=e>0,r=M.content.scrollTop();return o&&!r?l(t):o||M.innerContent.height()-M.content.height()!=r?void 0:l(t)}function l(t){return t.stopPropagation(t),t.preventDefault(t),t.returnValue=!1,!1}function f(){b||(y=!0,i(!1),P(),g(E).then(h).then(d).then(h).then(m))}function c(){y=!1,i(!0)}function u(t,o){M.target=!1;var r=e.current.tour.steps;return E=o,e.view={step:o,length:r.length,previousText:x.previousText,nextText:o==r.length-1?x.finishText:x.nextText},M.innerContent.html(r[o].content),M.content.scrollTop(0),b=!0,g(o).then(h).then(d).then(h).then(m).then(function(){b=!1})}function g(o){var r=t.defer();if(M.target)r.resolve(k);else{var n=angular.element(e.current.tour.steps[o].target);n.length?(M.target=angular.element(n[0]),r.resolve(M.target)):r.resolve(!1)}return r.promise}function h(){return 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o=!1;return function(){o||(t.call(),o=!0,n(function(){o=!1},e))}}function b(t,e,o){var r;return function(){var n=this,i=arguments,s=function(){r=null,o||t.apply(n,i)},a=o&&!r;clearTimeout(r),r=setTimeout(s,e),a&&t.apply(n,i)}}var T=o.$new();return angular.extend(T,{config:{mask:{visible:!0,visibleOnNoTarget:!1,clickThrough:!1,clickExit:!1,scrollThrough:!0,color:"rgba(0,0,0,.7)"},dark:!1,scrollBox:-1!=navigator.userAgent.indexOf("AppleWebKit")?"body":"html",previousText:"Previous",nextText:"Next",finishText:"Finish",animationDuration:400,placementPriority:["bottom","right","top","left"],disableHotkeys:!1,showPrevious:!0,showNext:!0},current:!1,body:angular.element("body"),box:!1,start:i,stop:s,pause:a,next:l,previous:f,gotoStep:c,throttle:k,debounce:b}),window.nzTour=T,T}]),n.directive("nzTour",["$q",function(t){return{template:['<div id="nzTour-box-wrap">','   <div id="nzTour-box">','        <div id="nzTour-tip" class="top center"></div>','        <div id="nzTour-step">{{view.step + 1}}</div>','        <div id="nzTour-length">{{view.length}}</div>','        <div id="nzTour-close" ng-click="stop()">&#10005</div>','        <div id="nzTour-content">','           <div id="nzTour-inner-content"></div>',"        </div>",'        <div id="nzTour-actions">','            <button id="nzTour-previous" ng-show="view.step > 0 && view.showPrevious" ng-click="previous()"> ng-click="previous()">{{view.previousText}}</button>','            <button id="nzTour-next" ng-show="view.step >= 0 && view.showNext" ng-click="next()" class="success">{{view.nextText}}</button>',"        </div>","    </div>","</div>",'<div class="nzTour-masks" ng-show="current.tour.config.mask.visible" ng-click="tryStop()">','    <div class="mask top" ng-style="{\'background-color\': current.tour.config.mask.color}"></div>','    <div class="mask right" ng-style="{\'background-color\': current.tour.config.mask.color}"></div>','    <div class="mask bottom" ng-style="{\'background-color\': current.tour.config.mask.color}"></div>','    <div class="mask left" ng-style="{\'background-color\': current.tour.config.mask.color}"></div>','    <div class="mask center"></div>',"</div>"].join(" "),link:function(e,o){function r(t){if(t.which>=49&&t.which<=57)return void e.gotoStep(t.which-48);switch(t.which){case 37:return e.previous(),void l(t);case 39:return e.next(),void l(t);case 27:if(!x.disableEscExit)return e.stop(),void l(t);case 38:case 40:return void R()}}function n(t){return t.stopPropagation(t),t.preventDefault(t),t.returnValue=!1,!1}function i(t){var e=E.masks_top.add(E.masks_right).add(E.masks_bottom).add(E.masks_left);t?(_=!0,e.css("transition","all "+x.animationDuration+"ms ease")):(_=!1,e.css("transition","all 0"))}function s(t){var e=E.wrap.add(E.box).add(E.tip);t?e.css("transition","all "+x.animationDuration+"ms ease"):e.css("transition","all 0")}function a(t){var e;e="DOMMouseScroll"==t.type?-40*t.detail:t.wheelDelta;var o=e>0,r=E.content.scrollTop();return o&&!r?l(t):o||E.innerContent.height()-E.content.height()!=r?void 0:l(t)}function l(t){return t.stopPropagation(t),t.preventDefault(t),t.returnValue=!1,!1}function f(){b||(y=!0,i(!1),L(),g(P).then(h).then(d).then(h).then(m))}function c(){y=!1,i(!0)}function u(t,o){E.target=!1;var r=e.current.tour.steps;return P=o,e.view={step:o,length:r.length,previousText:x.previousText,nextText:o==r.length-1?x.finishText:x.nextText,showNext:void 0===r[o].showNext?x.showNext:r[o].showNext,showPrevious:void 0===r[o].showPrevious?x.showPrevious:r[o].showPrevious},E.innerContent.html(r[o].content),E.content.scrollTop(0),b=!0,g(o).then(h).then(d).then(h).then(m).then(function(){b=!1})}function g(o){var r=t.defer();if(E.target)r.resolve(k);else{var n=angular.element(e.current.tour.steps[o].target);n.length?(E.target=angular.element(n[0]),r.resolve(E.target)):r.resolve(!1)}return r.promise}function h(){return E.target?(M.window={width:E.window.width(),height:E.window.height()},M.scroll={width:E.scroll.outerWidth(),height:E.scroll.outerHeight(),offset:E.scroll.offset(),scroll:{top:E.scroll.scrollTop(),left:E.scroll.scrollLeft()}},angular.forEach(M.scroll.offset,function(t,e){M.scroll.offset[e]=Math.ceil(t)}),M.scroll.height=M.scroll.height+M.scroll.offset.top>M.window.height?M.window.height:M.scroll.height,M.scroll.width=M.scroll.width+M.scroll.offset.left>M.window.width?M.window.width:M.scroll.width,M.scroll.offset.toBottom=M.scroll.height+M.scroll.offset.top,M.scroll.offset.toRight=M.scroll.width+M.scroll.offset.left,M.scroll.offset.fromBottom=M.window.height-M.scroll.offset.top-M.scroll.height,M.scroll.offset.fromRight=M.window.width-M.scroll.offset.left-M.scroll.width,M.target={width:E.target.outerWidth(),height:E.target.outerHeight(),offset:E.target.offset()},("body"==x.scrollBox||"html"==x.scrollBox)&&(M.target.offset.top-=M.scroll.scroll.top),angular.forEach(M.target.offset,function(t,e){M.target.offset[e]=Math.ceil(t)}),M.target.offset.toBottom=M.target.offset.top+M.target.height,M.target.offset.toRight=M.target.offset.left+M.target.width,M.target.offset.fromBottom=M.window.height-M.target.offset.top-M.target.height,M.target.offset.fromRight=M.window.width-M.target.offset.left-M.target.width,M.target.margins={offset:{top:M.target.offset.top-T,left:M.target.offset.left-T,toBottom:M.target.offset.toBottom+T,toRight:M.target.offset.toRight+T,fromBottom:M.target.offset.fromBottom-T,fromRight:M.target.offset.fromRight-T},height:M.target.height+2*T,right:M.target.offset.fromRight+2*T},t.when(null)):t.when(null)}function d(){if(!E.target)return t.when(null);var e=p(),o=t.defer();return e?E.scroll.animate({scrollTop:e},y?0:x.animationDuration,function(){o.resolve()}):o.resolve(),o.promise}function p(){return M.target.margins.height>M.scroll.height?M.target.offset.toBottom-z<M.scroll.offset.top?M.scroll.scroll.top-(M.scroll.offset.top-(M.target.offset.toBottom-z)):M.target.offset.top+z>M.scroll.offset.toBottom?M.scroll.scroll.top+(M.target.offset.top+z-M.scroll.offset.toBottom):!1:M.target.margins.offset.top<M.scroll.offset.top?M.scroll.scroll.top-(M.scroll.offset.top-M.target.margins.offset.top):M.target.margins.offset.toBottom>M.scroll.offset.toBottom?M.scroll.scroll.top+(M.target.margins.offset.toBottom-M.scroll.offset.toBottom):!1}function m(){return t.all([w(),v()])}function w(){function o(){return M.target.margins.offset.fromBottom>z?M.target.width>B?(s("bottom","center"),!0):M.target.offset.fromRight+M.target.width>B?(s("bottom","left"),!0):(s("bottom","right"),!0):!1}function r(){return M.target.margins.offset.fromRight>B?M.target.margins.height>M.scroll.height?M.target.offset.top>M.window.height/2?(a("right","top"),!0):M.target.offset.fromBottom>M.window.height/2?(a("right","bottom"),!0):(a("right","center",!0),!0):M.target.height>z?(a("right","center"),!0):M.target.offset.fromBottom+M.target.height>z?(a("right","top"),!0):(a("right","bottom"),!0):!1}function n(){return M.target.margins.offset.left>B?M.target.margins.height>M.scroll.height?(a("left","center",!0),!0):M.target.height>z?(a("left","center"),!0):M.target.offset.fromBottom+M.target.height>z?(a("left","top"),!0):(a("left","bottom"),!0):!1}function i(){return M.target.margins.offset.top>z?M.target.width>B?(s("top","center"),!0):M.target.offset.fromRight+M.target.width>B?(s("top","left"),!0):(s("top","right"),!0):!1}function s(t,e){var o,r,n,i,s;"top"==t?(o=M.target.margins.offset.top,s="bottom",i="-100%"):(o=M.target.margins.offset.toBottom,s="top",i="0"),"right"==e?(r=M.target.offset.toRight,n="-100%"):"center"==e?(r=M.target.offset.left+M.target.width/2,n="-50%"):(r=M.target.offset.left,n="0"),E.wrap.css({left:r+"px",top:o+"px",transform:"translate("+n+","+i+")"}),E.tip.attr("class","vertical "+s+" "+e)}function a(t,e,o){var r,n,i,s,a;"right"==t?(n=M.target.margins.offset.toRight,a="left",i="0"):(n=M.target.margins.offset.left,a="right",i="-100%"),o?(r=M.window.height/2,s="-50%"):"top"==e?(r=M.target.offset.top,s="0"):"center"==e?(r=M.target.offset.top+M.target.height/2,s="-50%"):(r=M.target.offset.toBottom,s="-100%"),E.wrap.css({left:n+"px",top:r+"px",transform:"translate("+i+","+s+")"}),E.tip.attr("class","horizontal "+a+" "+e)}function l(t,e){var o,r,n,i;"top"==t?(o=M.target.margins.offset.top<M.scroll.offset.top?T:M.target.offset.top,n="0"):(o=M.target.margins.offset.toBottom>M.scroll.offset.toBottom?M.scroll.offset.toBottom-T:M.target.offset.toBottom,n="-100%"),"right"==e?(r=M.target.offset.left+M.target.width,i="-100%"):"center"==e?(r=M.target.offset.left+M.target.width/2,i="-50%"):(r=M.target.offset.left,i="0"),E.wrap.css({left:r+"px",top:o+"px",transform:"translate("+i+","+n+")"}),E.tip.attr("class","hidden")}function f(){E.wrap.css({left:"50%",top:"50%",transform:"translate(-50%, -50%)",margin:"0"}),E.tip.attr("class","hidden")}var c=e.current.tour.steps[e.current.step];if(!E.target)return void f();var u={bottom:o,right:r,left:n,top:i},g=!1;return angular.forEach(c.placementPriority||x.placementPriority,function(t){!g&&u[t]()&&(g=!0)}),g||l("bottom","center"),t.when(null)}function v(){if(!E.target)return E.masks_top.css({height:x.mask.visibleOnNoTarget?"100%":"0px"}),E.masks_bottom.css({height:"0px"}),E.masks_left.css({top:"0px",height:"100%",width:"0px"}),E.masks_right.css({top:"0px",height:"100%",width:"0px"}),t.when(null);var e=x.highlightMargin?x.highlightMargin:0;return E.masks_top.css({height:M.target.offset.top-e+"px",top:M.target.offset.top<0?M.target.offset.top+"px":0}),E.masks_bottom.css({height:M.target.offset.fromBottom-e+"px",bottom:M.target.offset.fromBottom<0?M.target.offset.fromBottom+"px":0}),E.masks_left.css({top:M.target.offset.top-e+"px",height:M.target.height+2*e+"px",width:M.target.offset.left-e+"px"}),E.masks_right.css({top:M.target.offset.top-e+"px",height:M.target.height+2*e+"px",width:M.target.offset.fromRight-e+"px"}),x.disableInteraction&&E.masks_center.css({height:M.target.height+2*e+"px",top:M.target.offset.top-e+"px",left:M.target.offset.left-e+"px",right:M.target.offset.fromRight-e+"px",backgroundColor:"transparent"}),t.when(null)}var x=e.current.tour.config,k=!1,b=!1,T=15,z=120,B=250,y=!1,_=!0,P=null,E={window:angular.element(window),wrap:o.find("#nzTour-box-wrap"),box:o.find("#nzTour-box"),tip:o.find("#nzTour-tip"),step:o.find("#nzTour-step"),close:o.find("#nzTour-close"),content:o.find("#nzTour-content"),innerContent:o.find("#nzTour-inner-content"),actions:o.find("#nzTour-actions"),previous:o.find("#nzTour-previous"),next:o.find("#nzTour-next"),masks_wrap:o.find(".nzTour-masks"),masks_top:o.find(".nzTour-masks .top"),masks_right:o.find(".nzTour-masks .right"),masks_bottom:o.find(".nzTour-masks .bottom"),masks_left:o.find(".nzTour-masks .left"),masks_center:o.find(".nzTour-masks .center"),scroll:angular.element(x.scrollBox),target:!1},M={window:{},scroll:{},target:{}};i(!0),s(!0),E.masks_wrap.css("pointer-events",x.mask.clickThrough?"none":"all"),x.dark&&(E.box.addClass("dark-box"),T=7);var D=e.$on("step",u),R=e.throttle(f,16),L=e.debounce(c,100);0==x.disableHotkeys&&(E.window.bind("keydown",r),E.window.bind("resize scroll",R),window.addWheelListener(window,R),E.content.bind("scroll",a),window.addWheelListener(E.content[0],a),x.mask.scrollThrough===!1&&window.addWheelListener(E.masks_wrap[0],n)),e.cleanup=function(){D(),E.window.unbind("keydown",r),E.window.unbind("resize scroll",R),window.removeWheelListener(window,R),E.content.unbind("scroll",a),window.removeWheelListener(E.content[0],a),x.mask.scrollThrough===!1&&window.removeWheelListener(E.masks_wrap[0],n),E={},o.remove()},e.tryStop=function(){x.mask.clickExit&&e.stop()}}}}]),!window.addWheelListener){var i,s,a="";window.addEventListener?(i="addEventListener",_removeEventListener="removeEventListener"):(i="attachEvent",_removeEventListener="detachEvent",a="on"),s="onwheel"in document.createElement("div")?"wheel":void 0!==document.onmousewheel?"mousewheel":"DOMMouseScroll",window.addWheelListener=function(t,e,r){o(t,s,e,r),"DOMMouseScroll"==s&&o(t,"MozMousePixelScroll",e,r)},window.removeWheelListener=function(t,o,r){e(t,s,o,r),"DOMMouseScroll"==s&&e(t,"MozMousePixelScroll",o,r)}}}();
\ No newline at end of file
diff --git a/src/nz-tour.js b/src/nz-tour.js
index e36947d..90c3aab 100755
--- a/src/nz-tour.js
+++ b/src/nz-tour.js
@@ -24,7 +24,9 @@
                 finishText: 'Finish',
                 animationDuration: 400,
                 placementPriority: ['bottom', 'right', 'top', 'left'],
-                disableHotkeys: false
+                disableHotkeys: false,
+                showPrevious: true,
+                showNext: true
             },
             current: false,
             body: angular.element('body'),
@@ -263,8 +265,8 @@
                 '           <div id="nzTour-inner-content"></div>',
                 '        </div>',
                 '        <div id="nzTour-actions">',
-                '            <button id="nzTour-previous" ng-show="view.step > 0" ng-click="previous()">{{view.previousText}}</button>',
-                '            <button id="nzTour-next" ng-show="view.step >= 0" ng-click="next()" class="success">{{view.nextText}}</button>',
+                '            <button id="nzTour-previous" ng-show="view.step > 0 && view.showPrevious" ng-click="previous()"> ng-click="previous()">{{view.previousText}}</button>',
+                '            <button id="nzTour-next" ng-show="view.step >= 0 && view.showNext" ng-click="next()" class="success">{{view.nextText}}</button>',
                 '        </div>',
                 '    </div>',
                 '</div>',
@@ -484,7 +486,9 @@
                         step: step,
                         length: steps.length,
                         previousText: config.previousText,
-                        nextText: step == steps.length - 1 ? config.finishText : config.nextText
+                        nextText: step == steps.length - 1 ? config.finishText : config.nextText,
+                        showNext: steps[step].showNext === undefined ? config.showNext : steps[step].showNext,
+                        showPrevious: steps[step].showPrevious === undefined ? config.showPrevious : steps[step].showPrevious
                     };
                     //Don't mess around with angular sanitize for now. Add compile and sanitize later...
                     els.innerContent.html(steps[step].content);
diff --git a/src/nz-tour.styl b/src/nz-tour.styl
index 95150c2..35ed9a6 100755
--- a/src/nz-tour.styl
+++ b/src/nz-tour.styl
@@ -31,7 +31,7 @@ nz-tour
     #nzTour-box
         width: 250px
         min-height: 69px
-        max-height: 120px
+        max-height: 500px
         padding: .5em
         background: #fff
         box-shadow: 0 6px 19px 2px rgba(0,0,0,0.14)
@@ -151,7 +151,7 @@ nz-tour
         height: 100%
         max-height: 104px
         overflow-x: hidden
-        overflow-y: scroll
+        overflow-y: auto
         position:relative
         border-bottom: solid 32px transparent
         box-shadow: inset 0 -20px 20px -20px rgba(0,0,0,0.2)
@@ -228,4 +228,4 @@ nz-tour
             &.left
                 left:0
             &.right
-                right:0
\ No newline at end of file
+                right:0