diff --git a/deps/flecs.c b/deps/flecs.c
index bc3efe3..f7331b3 100644
--- a/deps/flecs.c
+++ b/deps/flecs.c
@@ -20357,7 +20357,7 @@ int ecs_app_run(
     }
 
     /* Monitoring periodically collects statistics */
-    if (desc->enable_monitor) {
+    if (desc->enable_stats) {
 #ifdef FLECS_STATS
         ECS_IMPORT(world, FlecsStats);
 #else
diff --git a/deps/flecs.h b/deps/flecs.h
index 57fb0ba..156bf8c 100644
--- a/deps/flecs.h
+++ b/deps/flecs.h
@@ -10729,7 +10729,7 @@ typedef struct ecs_app_desc_t {
     int32_t threads;          /**< Number of threads. */
     int32_t frames;           /**< Number of frames to run (0 for infinite) */
     bool enable_rest;         /**< Enables ECS access over HTTP, necessary for explorer */
-    bool enable_monitor;      /**< Periodically collect statistics */
+    bool enable_stats;      /**< Periodically collect statistics */
     uint16_t port;            /**< HTTP port used by REST API */
 
     ecs_app_init_action_t init; /**< If set, function is ran before starting the
@@ -19333,8 +19333,8 @@ struct app_builder {
         return *this;
     }
 
-    app_builder& enable_monitor(bool value = true) {
-        desc_.enable_monitor = value;
+    app_builder& enable_stats(bool value = true) {
+        desc_.enable_stats = value;
         return *this;
     }
 
diff --git a/etc/v4/flecs.js b/etc/v4/flecs.js
index 23dfa28..63ec578 100644
--- a/etc/v4/flecs.js
+++ b/etc/v4/flecs.js
@@ -235,7 +235,7 @@ const flecs = {
           query = flecs.trimQuery(query);
           query = query.replaceAll(", ", ",");
   
-          params.q = encodeURIComponent(query);
+          params.expr = encodeURIComponent(query);
           return this._.requestQuery(
             this, params, recv, err, abort, params.poll_interval_ms);
         },
@@ -248,14 +248,14 @@ const flecs = {
         },
 
         // Set component
-        set: function(path, component, data) {
+        set: function(path, component, value) {
           path = this._.escapePath(path);
-          if (typeof data == "object") {
-            data = JSON.stringify(data);
-            data = encodeURIComponent(data);
+          if (typeof value == "object") {
+            value = JSON.stringify(value);
+            value = encodeURIComponent(value);
           }
           return this._.request(this, "PUT", "component/" + path, 
-            {component: component, data: data});
+            {component: component, value: value});
         },
 
         // Get component
@@ -274,33 +274,38 @@ const flecs = {
         // Add component
         add: function(path, component) {
           path = this._.escapePath(path);
-          return this._.request(this, "PUT", "add/" + path, 
+          return this._.request(this, "PUT", "component/" + path, 
             {component: component});
         },
 
         // Remove component
         remove: function(path, component) {
           path = this._.escapePath(path);
-          return this._.request(this, "PUT", "remove/" + path, 
+          return this._.request(this, "DELETE", "component/" + path,
             {component: component});
         },
 
-        // Enable entity
-        enable: function(path) {
+        // Enable entity/component
+        enable: function(path, component) {
           path = this._.escapePath(path);
-          return this._.request(this, "PUT", "enable/" + path, {});
+          return this._.request(this, "PUT", "toggle/" + path, {
+            enable: true, component: component
+
+          });
         },
 
-        // Disable entity
-        disable: function(path) {
+        // Disable entity/component
+        disable: function(path, component) {
           path = this._.escapePath(path);
-          return this._.request(this, "PUT", "disable/" + path, {});
+          return this._.request(this, "PUT", "toggle/" + path, {
+            enable: false, component: component
+          });
         },
 
         // Delete entity
         delete: function(path) {
           path = this._.escapePath(path);
-          return this._.request(this, "PUT", "delete/" + path, {});
+          return this._.request(this, "DELETE", "entity/" + path, {});
         },
 
         // Update script code
diff --git a/etc/v4/js/components/code-editor.vue b/etc/v4/js/components/code-editor.vue
index a74e7b5..c336cea 100644
--- a/etc/v4/js/components/code-editor.vue
+++ b/etc/v4/js/components/code-editor.vue
@@ -176,6 +176,7 @@ onMounted(() => {
   editor = ace.edit("editor");
   editor.setValue(value.value);
   editor.setOption("highlightActiveLine", false);
+  editor.setOption("tabSize", 2);
   editor.setTheme("ace/theme/flecs-script");
   editor.session.setMode("ace/mode/flecs-query");
 
diff --git a/etc/v4/js/components/pages/entities/flecs-script.vue b/etc/v4/js/components/pages/entities/flecs-script.vue
index b69b387..24584c2 100644
--- a/etc/v4/js/components/pages/entities/flecs-script.vue
+++ b/etc/v4/js/components/pages/entities/flecs-script.vue
@@ -57,6 +57,8 @@ function onScriptChange(editorObj) {
 onMounted(() => {
   editorObj = ace.edit("editor");
   editorObj.setOption("highlightActiveLine", false);
+  editorObj.setOption("tabSize", 2);
+  editorObj.setBehavioursEnabled(true);
   editorObj.setTheme("ace/theme/flecs-script");
   editorObj.session.setMode("ace/mode/flecs-script");
 
diff --git a/etc/v4/js/components/pages/queries/query-browser.vue b/etc/v4/js/components/pages/queries/query-browser.vue
index 89903b6..328dcef 100644
--- a/etc/v4/js/components/pages/queries/query-browser.vue
+++ b/etc/v4/js/components/pages/queries/query-browser.vue
@@ -139,7 +139,7 @@ const css = computed(() => {
 const itemIcon = (item) => {
   if (item.observer) {
     return "bell";
-  } else if (item.is_set[1]) {
+  } else if (!item.fields.is_set || item.fields.is_set[1]) {
     return "code";
   } else {
     return "search";
@@ -150,7 +150,7 @@ const queryKind = (item) => {
   if (item.observer) {
     return "observer";
   } else {
-    let isSystem = item.is_set[1];
+    let isSystem = !item.fields.is_set || item.fields.is_set[1];
     if (isSystem) {
       return "system";
     }
diff --git a/etc/v4/js/components/pages/queries/query-cpp.vue b/etc/v4/js/components/pages/queries/query-cpp.vue
index 616dad1..596db74 100644
--- a/etc/v4/js/components/pages/queries/query-cpp.vue
+++ b/etc/v4/js/components/pages/queries/query-cpp.vue
@@ -40,7 +40,7 @@ const defaultSrc = (term) => {
 }
 
 const isTemplateArg = (term) => {
-  if (!term.has_data) {
+  if (!term.has_value) {
     return false;
   }
   if (!term.first) {
diff --git a/etc/v4/js/components/pages/queries/query-expr.vue b/etc/v4/js/components/pages/queries/query-expr.vue
index 88f13ad..1fe23d4 100644
--- a/etc/v4/js/components/pages/queries/query-expr.vue
+++ b/etc/v4/js/components/pages/queries/query-expr.vue
@@ -110,7 +110,7 @@ const skipInout = (term) => {
     return true;
   }
 
-  if ((!term.has_data && term.inout == "none")) {
+  if ((!term.has_value && term.inout == "none")) {
     return true;
   }
 
diff --git a/etc/v4/js/components/pages/queries/query-list-item.vue b/etc/v4/js/components/pages/queries/query-list-item.vue
index dc5b4c3..72f04f2 100644
--- a/etc/v4/js/components/pages/queries/query-list-item.vue
+++ b/etc/v4/js/components/pages/queries/query-list-item.vue
@@ -46,19 +46,19 @@ const docKey = "(Description,Brief)";
 //  (ChildOf, scope), $this ~= expr, ...
 
 const isScopedQuery = computed(() => {
-  return props.prop.is_set.length == 6;
+  return props.prop.fields.is_set.length == 6;
 })
 
 const isComponent = computed(() => {
-  return isScopedQuery.value ? props.prop.is_set[3] : props.prop.is_set[2];
+  return isScopedQuery.value ? props.prop.fields.is_set[3] : props.prop.fields.is_set[2];
 });
 
 const isRelationship = computed(() => {
-  return isScopedQuery.value ? props.prop.is_set[4] : props.prop.is_set[3];
+  return isScopedQuery.value ? props.prop.fields.is_set[4] : props.prop.fields.is_set[3];
 });
 
 const isModule = computed(() => {
-  return isScopedQuery.value ? props.prop.is_set[5] : props.prop.is_set[4];
+  return isScopedQuery.value ? props.prop.fields.is_set[5] : props.prop.fields.is_set[4];
 });
 
 const description = computed(() => {
diff --git a/etc/v4/js/components/prop-browser.vue b/etc/v4/js/components/prop-browser.vue
index 24b2533..677b643 100644
--- a/etc/v4/js/components/prop-browser.vue
+++ b/etc/v4/js/components/prop-browser.vue
@@ -43,9 +43,9 @@ watch(() => props.first, () => {
     props.conn.query(query, {try: true, rows: true, limit: 1}, (reply) => {
       if (reply.results) {
         let result = reply.results[0];
-        if (result.is_set && result.is_set[1]) {
+        if (!result.fields.is_set || result.fields.is_set[1]) {
           oneof.value = result.vars.parent;
-        } else if (result.is_set[0]) {
+        } else if (!result.fields.is_set || result.fields.is_set[0]) {
           oneof.value = props.first;
         }
       } else {
diff --git a/etc/v4/js/components/widgets/table/entity-table.vue b/etc/v4/js/components/widgets/table/entity-table.vue
index be73dfc..ad4cffd 100644
--- a/etc/v4/js/components/widgets/table/entity-table.vue
+++ b/etc/v4/js/components/widgets/table/entity-table.vue
@@ -124,8 +124,8 @@ const tableHeaders = computed(() => {
         schema: field.schema,
         index: index++,
         get: (result) => {
-          if (!result.is_set || result.is_set[i]) {
-            return result.fields[i].data;
+          if (!result.fields.is_set || result.fields.is_set[i]) {
+            return result.fields.values[i];
           } else {
             return undefined;
           }
diff --git a/etc/v4/js/components/widgets/tree/entity-subtree.vue b/etc/v4/js/components/widgets/tree/entity-subtree.vue
index f29485b..1362a6a 100644
--- a/etc/v4/js/components/widgets/tree/entity-subtree.vue
+++ b/etc/v4/js/components/widgets/tree/entity-subtree.vue
@@ -121,14 +121,14 @@ function updateQuery() {
         Object.assign(treeItem, item);
 
         treeItem.path = path;
-        treeItem.isModule = item.is_set[0];
-        treeItem.isComponent = item.is_set[1] || item.is_set[2] || item.is_set[3];
-        treeItem.isTarget = item.is_set[4];
-        treeItem.isQuery = item.is_set[5];
-        treeItem.isPrefab = item.is_set[6];
-        treeItem.isDisabled = item.is_set[7];
-        treeItem.isParent = item.is_set[8];
-        treeItem.baseEntity = item.is_set[9] ? item.vars["base"] : undefined;
+        treeItem.isModule = item.fields.is_set[0];
+        treeItem.isComponent = item.fields.is_set[1] || item.fields.is_set[2] || item.fields.is_set[3];
+        treeItem.isTarget = item.fields.is_set[4];
+        treeItem.isQuery = item.fields.is_set[5];
+        treeItem.isPrefab = item.fields.is_set[6];
+        treeItem.isDisabled = item.fields.is_set[7];
+        treeItem.isParent = item.fields.is_set[8];
+        treeItem.baseEntity = item.fields.is_set[9] ? item.vars["base"] : undefined;
 
         if (item.doc) {
           treeItem.label = item.doc.label;