diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.junit.interpreter.run.configuration/models/org.iets3.core.junit.interpreter.run.configuration.plugin.mps b/code/languages/org.iets3.opensource/solutions/org.iets3.core.junit.interpreter.run.configuration/models/org.iets3.core.junit.interpreter.run.configuration.plugin.mps
index 9402a412a..e32ce2181 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.junit.interpreter.run.configuration/models/org.iets3.core.junit.interpreter.run.configuration.plugin.mps
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.junit.interpreter.run.configuration/models/org.iets3.core.junit.interpreter.run.configuration.plugin.mps
@@ -17,6 +17,7 @@
     <use id="760a0a8c-eabb-4521-8bfd-65db761a9ba3" name="jetbrains.mps.baseLanguage.logging" version="0" />
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="2" />
+    <use id="63650c59-16c8-498a-99c8-005c7ee9515d" name="jetbrains.mps.lang.access" version="0" />
   </languages>
   <imports>
     <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" />
@@ -59,7 +60,6 @@
     <import index="av4b" ref="r:ba7faab6-2b80-43d5-8b95-0c440665312c(org.iets3.core.expr.tests.structure)" />
     <import index="tpnd" ref="r:00000000-0000-4000-0000-011c89590405(jetbrains.mps.baseLanguage.unitTest.execution)" />
     <import index="xk6s" ref="r:7961970e-5737-42e2-b144-9bef3ad8d077(org.iets3.core.expr.tests.behavior)" />
-    <import index="1ctc" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util.stream(JDK/)" />
     <import index="fnpx" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.notification(MPS.IDEA/)" />
     <import index="4nm9" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.project(MPS.IDEA/)" />
     <import index="18ew" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.util(MPS.Core/)" />
@@ -369,6 +369,14 @@
         <reference id="1170346070688" name="classifier" index="1Y3XeK" />
       </concept>
     </language>
+    <language id="63650c59-16c8-498a-99c8-005c7ee9515d" name="jetbrains.mps.lang.access">
+      <concept id="8974276187400348173" name="jetbrains.mps.lang.access.structure.CommandClosureLiteral" flags="nn" index="1QHqEC" />
+      <concept id="8974276187400348170" name="jetbrains.mps.lang.access.structure.BaseExecuteCommandStatement" flags="nn" index="1QHqEJ">
+        <child id="1423104411234567454" name="repo" index="ukAjM" />
+        <child id="8974276187400348171" name="commandClosureLiteral" index="1QHqEI" />
+      </concept>
+      <concept id="8974276187400348183" name="jetbrains.mps.lang.access.structure.ExecuteWriteActionStatement" flags="nn" index="1QHqEM" />
+    </language>
     <language id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures">
       <concept id="1199542442495" name="jetbrains.mps.baseLanguage.closures.structure.FunctionType" flags="in" index="1ajhzC">
         <child id="1199542457201" name="resultType" index="1ajl9A" />
@@ -566,17 +574,8 @@
         <reference id="2644386474300074837" name="conceptDeclaration" index="35c_gD" />
       </concept>
       <concept id="6677504323281689838" name="jetbrains.mps.lang.smodel.structure.SConceptType" flags="in" index="3bZ5Sz" />
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-        <reference id="1154546997487" name="concept" index="3gnhBz" />
-      </concept>
-      <concept id="5944356402132808749" name="jetbrains.mps.lang.smodel.structure.ConceptSwitchStatement" flags="nn" index="1_3QMa">
-        <child id="6039268229365417680" name="defaultBlock" index="1prKM_" />
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-        <child id="5944356402132808752" name="expression" index="1_3QMn" />
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-        <child id="1163670677455" name="concept" index="3Kbmr1" />
-        <child id="1163670683720" name="body" index="3Kbo56" />
+      <concept id="1139621453865" name="jetbrains.mps.lang.smodel.structure.Node_IsInstanceOfOperation" flags="nn" index="1mIQ4w">
+        <child id="1177027386292" name="conceptArgument" index="cj9EA" />
       </concept>
       <concept id="1140137987495" name="jetbrains.mps.lang.smodel.structure.SNodeTypeCastExpression" flags="nn" index="1PxgMI">
         <property id="1238684351431" name="asCast" index="1BlNFB" />
@@ -3762,10 +3761,23 @@
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             <node concept="3cpWs6" id="4Q8dWC6ZbVa" role="3cqZAp" />
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-            <node concept="37vLTw" id="4Q8dWC6ZbVd" role="3uHU7B">
-              <ref role="3cqZAo" node="3ZOWdXPxuGS" resolve="wrapper" />
+          <node concept="22lmx$" id="4qV6kzuxryo" role="3clFbw">
+            <node concept="3clFbC" id="4qV6kzuxAgz" role="3uHU7w">
+              <node concept="10Nm6u" id="4qV6kzuxC1d" role="3uHU7w" />
+              <node concept="2OqwBi" id="4qV6kzuxya0" role="3uHU7B">
+                <node concept="37vLTw" id="4qV6kzuxwne" role="2Oq$k0">
+                  <ref role="3cqZAo" node="3ZOWdXPxuGS" resolve="wrapper" />
+                </node>
+                <node concept="liA8E" id="4qV6kzux$9w" role="2OqNvi">
+                  <ref role="37wK5l" to="sfqd:56tRMpP_ejc" resolve="getNodePointer" />
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbC" id="4Q8dWC6ZbVb" role="3uHU7B">
+              <node concept="37vLTw" id="4Q8dWC6ZbVd" role="3uHU7B">
+                <ref role="3cqZAo" node="3ZOWdXPxuGS" resolve="wrapper" />
+              </node>
+              <node concept="10Nm6u" id="4Q8dWC6ZbVc" role="3uHU7w" />
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@@ -3810,64 +3822,76 @@
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+              <node concept="3clFbS" id="57Vjo2T_5aN" role="3clFbx">
+                <node concept="3clFbF" id="57Vjo2T_X48" role="3cqZAp">
+                  <node concept="1rXfSq" id="57Vjo2T_YkC" role="3clFbG">
+                    <ref role="37wK5l" node="2sMqeOJD_WE" resolve="handleTestSuite" />
+                    <node concept="37vLTw" id="57Vjo2T_YkD" role="37wK5m">
+                      <ref role="3cqZAo" node="3ZOWdXPxuGS" resolve="wrapper" />
+                    </node>
+                  </node>
                 </node>
-                <node concept="2yIwOk" id="2N8OOfWqv50" role="2OqNvi" />
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-                  <ref role="3gnhBz" to="av4b:ub9nkyK62f" resolve="TestSuite" />
+              <node concept="2OqwBi" id="57Vjo2T_95i" role="3clFbw">
+                <node concept="37vLTw" id="57Vjo2T_7u5" role="2Oq$k0">
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-                        <ref role="3cqZAo" node="3ZOWdXPxuGS" resolve="wrapper" />
-                      </node>
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+                <node concept="1mIQ4w" id="57Vjo2T_s5g" role="2OqNvi">
+                  <node concept="chp4Y" id="57Vjo2T_tnN" role="cj9EA">
+                    <ref role="cht4Q" to="av4b:59WscmUTdO4" resolve="ITestItemContainer" />
                   </node>
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+                        <node concept="1rXfSq" id="57Vjo2TA1AV" role="3clFbG">
+                          <ref role="37wK5l" node="1ZjgyFGBkPX" resolve="handleTestItem" />
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+                            <ref role="3cqZAo" node="3ZOWdXPxuGS" resolve="wrapper" />
+                          </node>
+                          <node concept="1PxgMI" id="57Vjo2TA1AX" role="37wK5m">
+                            <property role="1BlNFB" value="true" />
+                            <node concept="chp4Y" id="57Vjo2TA1AY" role="3oSUPX">
+                              <ref role="cht4Q" to="av4b:78hTg1$THIw" resolve="AbstractTestItem" />
+                            </node>
+                            <node concept="37vLTw" id="57Vjo2TA1AZ" role="1m5AlR">
+                              <ref role="3cqZAo" node="4Q8dWC74Wdu" resolve="node" />
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-                        <property role="1BlNFB" value="true" />
-                        <node concept="chp4Y" id="1ZjgyFGBequ" role="3oSUPX">
+                      <node concept="1mIQ4w" id="57Vjo2TAc$l" role="2OqNvi">
+                        <node concept="chp4Y" id="57Vjo2TAdPP" role="cj9EA">
                           <ref role="cht4Q" to="av4b:78hTg1$THIw" resolve="AbstractTestItem" />
                         </node>
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-                          <ref role="3cqZAo" node="4Q8dWC74Wdu" resolve="node" />
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+                      <node concept="3clFbS" id="57Vjo2TAhqh" role="9aQI4">
+                        <node concept="3clFbF" id="724B1Nsr1NS" role="3cqZAp">
+                          <node concept="2OqwBi" id="724B1Nsr3BZ" role="3clFbG">
+                            <node concept="37vLTw" id="724B1Nsr1NQ" role="2Oq$k0">
+                              <ref role="3cqZAo" node="724B1NsqO9K" resolve="setOfConcepts" />
+                            </node>
+                            <node concept="TSZUe" id="724B1Nsr7BK" role="2OqNvi">
+                              <node concept="2OqwBi" id="724B1Nsrbg9" role="25WWJ7">
+                                <node concept="37vLTw" id="724B1Nsr9ux" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="4Q8dWC74Wdu" resolve="node" />
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+                                <node concept="2yIwOk" id="724B1Nsrc$k" role="2OqNvi" />
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+                            </node>
+                          </node>
                         </node>
-                        <node concept="2yIwOk" id="724B1Nsrc$k" role="2OqNvi" />
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@@ -4029,57 +4053,43 @@
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     <node concept="3clFb_" id="2sMqeOJD_WE" role="jymVt">
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+          <node concept="3cpWsn" id="2sMqeOJD_WN" role="3cpWs9">
+            <property role="TrG5h" value="testMethods" />
+            <node concept="A3Dl8" id="2sMqeOJD_WO" role="1tU5fm">
+              <node concept="3uibUv" id="2sMqeOJD_WP" role="A3Ik2">
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             </node>
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+                <ref role="37wK5l" node="3ZOWdXPxuGE" resolve="doExecute" />
+                <node concept="2GrUjf" id="2sMqeOJD_WY" role="37wK5m">
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         </node>
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       <node concept="3Tm6S6" id="2sMqeOJD_X0" role="1B3o_S" />
@@ -4095,213 +4105,203 @@
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-                              <ref role="37wK5l" to="xk6s:ub9nkyPULV" resolve="isOk" />
-                            </node>
-                          </node>
+                        <node concept="liA8E" id="1ZjgyFGBkRW" role="2OqNvi">
+                          <ref role="37wK5l" to="xk6s:ub9nkyPULV" resolve="isOk" />
                         </node>
                       </node>
-                      <node concept="3clFbF" id="3ViSmQmddF_" role="3cqZAp">
-                        <node concept="2OqwBi" id="3ViSmQmddFA" role="3clFbG">
-                          <node concept="37vLTw" id="3ViSmQmddFB" role="2Oq$k0">
-                            <ref role="3cqZAo" node="3ViSmQmi268" resolve="runListener" />
-                          </node>
-                          <node concept="liA8E" id="3ViSmQmddFC" role="2OqNvi">
-                            <ref role="37wK5l" node="56tRMpP_bxW" resolve="testFinished" />
-                            <node concept="37vLTw" id="3ViSmQmddFD" role="37wK5m">
-                              <ref role="3cqZAo" node="3ViSmQmb0ZY" resolve="testDescription" />
-                            </node>
-                          </node>
+                    </node>
+                  </node>
+                  <node concept="3clFbF" id="3ViSmQmddF_" role="3cqZAp">
+                    <node concept="2OqwBi" id="3ViSmQmddFA" role="3clFbG">
+                      <node concept="37vLTw" id="3ViSmQmddFB" role="2Oq$k0">
+                        <ref role="3cqZAo" node="3ViSmQmi268" resolve="runListener" />
+                      </node>
+                      <node concept="liA8E" id="3ViSmQmddFC" role="2OqNvi">
+                        <ref role="37wK5l" node="56tRMpP_bxW" resolve="testFinished" />
+                        <node concept="37vLTw" id="3ViSmQmddFD" role="37wK5m">
+                          <ref role="3cqZAo" node="3ViSmQmb0ZY" resolve="testDescription" />
                         </node>
                       </node>
                     </node>
@@ -4310,6 +4310,9 @@
               </node>
             </node>
           </node>
+          <node concept="37vLTw" id="57Vjo2THXsQ" role="ukAjM">
+            <ref role="3cqZAo" node="4Q8dWC73sz1" resolve="repo" />
+          </node>
         </node>
       </node>
       <node concept="3Tm6S6" id="1ZjgyFGBkSa" role="1B3o_S" />
@@ -13720,27 +13723,40 @@
               <node concept="1bVj0M" id="4gBl0l5KD$u" role="23t8la">
                 <node concept="3clFbS" id="4gBl0l5KD$v" role="1bW5cS">
                   <node concept="3clFbF" id="4gBl0l5KD$w" role="3cqZAp">
-                    <node concept="3fqX7Q" id="4gBl0l5KE98" role="3clFbG">
-                      <node concept="2OqwBi" id="4gBl0l5KE9a" role="3fr31v">
-                        <node concept="liA8E" id="4gBl0l5KE9h" role="2OqNvi">
-                          <ref role="37wK5l" to="mhbf:~SNode.isInstanceOfConcept(org.jetbrains.mps.openapi.language.SAbstractConcept)" resolve="isInstanceOfConcept" />
-                          <node concept="37vLTw" id="4gBl0l5KE9i" role="37wK5m">
-                            <ref role="3cqZAo" node="4gBl0l5JoUN" resolve="givenConcept" />
+                    <node concept="22lmx$" id="4qV6kzuwBNw" role="3clFbG">
+                      <node concept="3clFbC" id="4qV6kzuwFu$" role="3uHU7B">
+                        <node concept="10Nm6u" id="4qV6kzuwGkM" role="3uHU7w" />
+                        <node concept="2OqwBi" id="4qV6kzuwCIr" role="3uHU7B">
+                          <node concept="37vLTw" id="4qV6kzuwClH" role="2Oq$k0">
+                            <ref role="3cqZAo" node="4gBl0l5KD$E" resolve="it" />
+                          </node>
+                          <node concept="liA8E" id="4qV6kzuwFam" role="2OqNvi">
+                            <ref role="37wK5l" to="sfqd:56tRMpP_ejc" resolve="getNodePointer" />
                           </node>
                         </node>
-                        <node concept="2OqwBi" id="4gBl0l5KE9b" role="2Oq$k0">
-                          <node concept="2OqwBi" id="4gBl0l5KE9c" role="2Oq$k0">
-                            <node concept="37vLTw" id="4gBl0l5KE9d" role="2Oq$k0">
-                              <ref role="3cqZAo" node="4gBl0l5KD$E" resolve="it" />
-                            </node>
-                            <node concept="liA8E" id="4gBl0l5KE9e" role="2OqNvi">
-                              <ref role="37wK5l" to="sfqd:56tRMpP_ejc" resolve="getNodePointer" />
+                      </node>
+                      <node concept="3fqX7Q" id="4gBl0l5KE98" role="3uHU7w">
+                        <node concept="2OqwBi" id="4gBl0l5KE9a" role="3fr31v">
+                          <node concept="liA8E" id="4gBl0l5KE9h" role="2OqNvi">
+                            <ref role="37wK5l" to="mhbf:~SNode.isInstanceOfConcept(org.jetbrains.mps.openapi.language.SAbstractConcept)" resolve="isInstanceOfConcept" />
+                            <node concept="37vLTw" id="4gBl0l5KE9i" role="37wK5m">
+                              <ref role="3cqZAo" node="4gBl0l5JoUN" resolve="givenConcept" />
                             </node>
                           </node>
-                          <node concept="liA8E" id="4gBl0l5KE9f" role="2OqNvi">
-                            <ref role="37wK5l" to="mhbf:~SNodeReference.resolve(org.jetbrains.mps.openapi.module.SRepository)" resolve="resolve" />
-                            <node concept="37vLTw" id="4gBl0l5KE9g" role="37wK5m">
-                              <ref role="3cqZAo" node="4gBl0l5JAtr" resolve="repo" />
+                          <node concept="2OqwBi" id="4gBl0l5KE9b" role="2Oq$k0">
+                            <node concept="2OqwBi" id="4gBl0l5KE9c" role="2Oq$k0">
+                              <node concept="37vLTw" id="4gBl0l5KE9d" role="2Oq$k0">
+                                <ref role="3cqZAo" node="4gBl0l5KD$E" resolve="it" />
+                              </node>
+                              <node concept="liA8E" id="4gBl0l5KE9e" role="2OqNvi">
+                                <ref role="37wK5l" to="sfqd:56tRMpP_ejc" resolve="getNodePointer" />
+                              </node>
+                            </node>
+                            <node concept="liA8E" id="4gBl0l5KE9f" role="2OqNvi">
+                              <ref role="37wK5l" to="mhbf:~SNodeReference.resolve(org.jetbrains.mps.openapi.module.SRepository)" resolve="resolve" />
+                              <node concept="37vLTw" id="4gBl0l5KE9g" role="37wK5m">
+                                <ref role="3cqZAo" node="4gBl0l5JAtr" resolve="repo" />
+                              </node>
                             </node>
                           </node>
                         </node>
diff --git a/code/languages/org.iets3.opensource/solutions/org.iets3.core.junit.interpreter.run.configuration/org.iets3.core.junit.interpreter.run.configuration.msd b/code/languages/org.iets3.opensource/solutions/org.iets3.core.junit.interpreter.run.configuration/org.iets3.core.junit.interpreter.run.configuration.msd
index bc3e82996..32838cde6 100644
--- a/code/languages/org.iets3.opensource/solutions/org.iets3.core.junit.interpreter.run.configuration/org.iets3.core.junit.interpreter.run.configuration.msd
+++ b/code/languages/org.iets3.opensource/solutions/org.iets3.core.junit.interpreter.run.configuration/org.iets3.core.junit.interpreter.run.configuration.msd
@@ -41,6 +41,7 @@
     <language slang="l:73c1a490-99fa-4d0d-8292-b8985697c74b:jetbrains.mps.execution.common" version="0" />
     <language slang="l:22e72e4c-0f69-46ce-8403-6750153aa615:jetbrains.mps.execution.configurations" version="2" />
     <language slang="l:756e911c-3f1f-4a48-bdf5-a2ceb91b723c:jetbrains.mps.execution.settings" version="0" />
+    <language slang="l:63650c59-16c8-498a-99c8-005c7ee9515d:jetbrains.mps.lang.access" version="0" />
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="2" />
     <language slang="l:446c26eb-2b7b-4bf0-9b35-f83fa582753e:jetbrains.mps.lang.modelapi" version="0" />
     <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="5" />