diff --git a/src/adonisjs/public/dccs/components/cell/rule-dcc-cell-neighbor.js b/src/adonisjs/public/dccs/components/cell/rule-dcc-cell-neighbor.js
index 026d87d4..2c1c085c 100644
--- a/src/adonisjs/public/dccs/components/cell/rule-dcc-cell-neighbor.js
+++ b/src/adonisjs/public/dccs/components/cell/rule-dcc-cell-neighbor.js
@@ -76,7 +76,10 @@ class RuleDCCCellNeighbor extends RuleDCCTransition {
 
   notify (topic, message) {
     switch (topic.toLowerCase()) {
-      case 'probability': this.probability = message.value; break
+      case 'probability':
+        this.probability =
+          (message.value != null) ? message.value : message.body;
+        break
     }
   }
 }
diff --git a/src/adonisjs/public/dccs/components/control/dcc-compute.js b/src/adonisjs/public/dccs/components/control/dcc-compute.js
index 745e82b4..7ada10ee 100644
--- a/src/adonisjs/public/dccs/components/control/dcc-compute.js
+++ b/src/adonisjs/public/dccs/components/control/dcc-compute.js
@@ -148,9 +148,15 @@ class DCCCompute extends DCCBase {
     this.setAttribute('dependency', newValue)
   }
 
-  notify (topic, message) {
-    if (topic.toLowerCase() == 'update')
+  async notify (topic, message) {
+    const tp = topic.toLowerCase()
+    if (tp == 'update')
       this.update()
+    else if (tp.startsWith('var/')) {
+      await this._request('var/set/' + tp.substring(4).replace(/\./g, '/'),
+                          message.value)
+      this.update()
+    }
   }
 
   async update () {
diff --git a/src/adonisjs/public/dccs/components/visual/dcc-expression.js b/src/adonisjs/public/dccs/components/visual/dcc-expression.js
index a481c70b..bbb49461 100644
--- a/src/adonisjs/public/dccs/components/visual/dcc-expression.js
+++ b/src/adonisjs/public/dccs/components/visual/dcc-expression.js
@@ -35,8 +35,6 @@ class DCCExpression extends DCCVisual {
     //                    also monitors all messages
     if (this.active) {
       this.stateChanged = this.stateChanged.bind(this)
-      console.log('=== component bus')
-      console.log(this._bus)
       this._subscribe('input/state/#', this.stateChanged)
       this._stateValues = {}
     }
diff --git a/src/adonisjs/public/player/js/htracker.js b/src/adonisjs/public/player/js/htracker.js
index b3ee9162..9897c0c0 100644
--- a/src/adonisjs/public/player/js/htracker.js
+++ b/src/adonisjs/public/player/js/htracker.js
@@ -20,6 +20,8 @@ class Tracker {
     this.caseCompleted = this.caseCompleted.bind(this)
     MessageBus.i.subscribe('case/completed/+', this.caseCompleted)
     MessageBus.i.subscribe('session/close', this.caseCompleted)
+    this.caseTryHalt = this.caseTryHalt.bind(this)
+    MessageBus.i.subscribe('case/tryhalt', this.caseTryHalt)
 
     this.submitVariables = this.submitVariables.bind(this)
     MessageBus.i.subscribe('input/submit/*', this.submitVariables)
@@ -28,6 +30,7 @@ class Tracker {
   initializeTrack () {
     this._variables = {}
     this._varUpdated = {}
+    this._varTrack = []
     // this._varChanged = {} <FUTURE>
     this._mandatoryFilled = {}
     this._groupInput = null
@@ -81,6 +84,11 @@ class Tracker {
   }
 
   inputChanged (topic, message) {
+    const varid = this._extractEntityId(topic, 3)
+    const currentDateTime = new Date()
+    const tr = {changed: currentDateTime.toJSON()}
+    tr[varid] = message.value
+    this._varTrack.push(tr)
     this._updateVariable(this._extractEntityId(topic, 3), message.value)
     // this._changedVariable(topic, message.value) <FUTURE>
   }
@@ -157,10 +165,26 @@ class Tracker {
         {userId: message.userId,
          caseId: message.caseId,
          knotTrack: this._knotTrack,
-         variables: this._variables}, true)
+         variables: this._variables,
+         varTrack: this._varTrack}, true)
     }
   }
 
+  async caseTryHalt (userId, caseId, instanceId) {
+    const currentDateTime = new Date()
+    this._knotTrack.push(
+      {event: '*** try case halt ***',
+       timeResume: currentDateTime.toJSON()}
+    )
+    this._variables['try case halt'] = '*** try case halt ***'
+    await MessageBus.i.publish('case/summary/' + instanceId,
+      {userId: userId,
+       caseId: caseId,
+       knotTrack: this._knotTrack,
+       variables: this._variables,
+       varTrack: this._varTrack}, true)
+  }
+
   caseHalt (userId, caseId, instanceId) {
     const track = this._trackRetrieve()
     if (track != null) {
@@ -174,7 +198,8 @@ class Tracker {
         {userId: userId,
          caseId: caseId,
          knotTrack: track.knotTrack,
-         variables: track.variables}, true)
+         variables: track.variables,
+         varTrack: this._varTrack}, true)
     }
   }
 
@@ -187,6 +212,7 @@ class Tracker {
         {knotTrack: this._knotTrack,
          variables: this._variables,
          varUpdated: this._varUpdated,
+         varTrack: this._varTrack,
          mandatoryFilled: this._mandatoryFilled,
          groupInput: this._groupInput,
          caseCompleted: this._caseCompleted
@@ -207,6 +233,7 @@ class Tracker {
     if (track != null) {
       this._knotTrack = track.knotTrack
       this._variables = track.variables
+      this._varTrack = track.varTrack
       this._varUpdated = track.varUpdated
       this._mandatoryFilled = track.mandatoryFilled
       this._groupInput = track.groupInput
diff --git a/src/adonisjs/public/player/js/player.js b/src/adonisjs/public/player/js/player.js
index 8f172d69..3861196e 100644
--- a/src/adonisjs/public/player/js/player.js
+++ b/src/adonisjs/public/player/js/player.js
@@ -202,10 +202,26 @@ class PlayerManager {
   }
   */
 
+  async tryHalt () {
+    try {
+      const pPlay = this._state.pendingPlayCheck()
+      if (!this._previewCase && pPlay != null && pPlay.running)
+        this._tracker.caseTryHalt(pPlay.userid, pPlay.caseid, pPlay.running.runningId)
+    } catch (e) {
+      console.log('=== error on halt')
+      console.log(e)
+    }
+    return ''
+  }
+
   async startPlayer (caseid) {
+    this.tryHalt = this.tryHalt.bind(this)
+    window.onbeforeunload = this.tryHalt
+    /*
     window.onbeforeunload = function() {
       return "";
     }
+    */
     const resumeActive = true  // activates and deactivates case resume
     this._mainPanel = document.querySelector('#player-panel')
 
diff --git a/src/adonisjs/public/themes/plain/css/theme.css b/src/adonisjs/public/themes/plain/css/theme.css
index c9523174..75d1d30a 100644
--- a/src/adonisjs/public/themes/plain/css/theme.css
+++ b/src/adonisjs/public/themes/plain/css/theme.css
@@ -61,6 +61,13 @@ body {
   margin-left: 6px
 }
 
+/* Input Typed DCC
+ *****************/
+
+.dcc-input-typed-theme input textarea {
+   font-size: 4vh;
+}
+
 /* Button DCC
  ************/