* QCueGrid.cs: Rebuild cue grid when children cue change

* QCueGridListHelper.cs: Helper class for linking cue id with cue grid

* QCueViewModel.cs: Revoe unused import

* QBrowserPage.xaml.cs:
* ControlPage.xaml.cs:
* QWorkspaceViewModel.cs:
* qConnectionPage.xaml.cs: Remove unused import

* QWorkspacePage.xaml.cs: Fix scrolling to select cue and handle no
  selected cue

qController.Standard/Classes/UI/QCueGridListHelper.cs

@@ -1,10 +1,45 @@
-using System;
-namespace qController
+// Allows the "storage" of links between cue ids and QCueGrids
+// a little hacky but works with the recursive nature of QCueGrids
+// used mainly for scrolling to the appropriate QCueGrid when selected cue changes
+
+using System.Collections.Generic;
+
+namespace qController.UI
 {
     public class QCueGridListHelper
     {
-        public QCueGridListHelper()
+        private static Dictionary<string, QCueGrid> cueGridDict;
+        static QCueGridListHelper()
         {
+            cueGridDict = new Dictionary<string, QCueGrid>();
+        }
+
+        public static void reset()
+        {
+            cueGridDict.Clear();
+        }
+
+        public static void insert(string cueID, QCueGrid cueGrid)
+        {
+            if (cueGridDict.ContainsKey(cueID))
+            {
+                cueGridDict[cueID] = cueGrid;
+            }
+            else
+            {
+                cueGridDict.Add(cueID, cueGrid);
+            }
+        }
+
+        public static QCueGrid get(string cueID)
+        {
+            if (cueGridDict.ContainsKey(cueID))
+            {
+                return cueGridDict[cueID];
+            }
+            else {
+                return null;
+            }
         }
     }
 }