Resolve the requests regarding comments and variable name adjustments.

Assets/SEE/Controls/Actions/AbstractPlayerAction.cs

@@ -28,7 +28,7 @@ public abstract class AbstractPlayerAction : IReversibleAction
         protected IReversibleAction.Progress CurrentState = IReversibleAction.Progress.NoEffect;
 
         /// <summary>
-        /// Whether the action was executed via context menu.
+        /// Whether the action is executed through the context menu.
         /// </summary>
         public bool ExecuteViaContextMenu { get; set; } = false;
 

Assets/SEE/Controls/Actions/AcceptDivergenceAction.cs

@@ -278,7 +278,7 @@ private static Edge CreateConvergentEdge(Memento memento)
         /// <summary>
         /// Used to execute the <see cref="AcceptDivergenceAction"/> from the context menu.
         /// Creates a new edge in the architecture to allow the given <paramref name="divergence"/>
-        /// and ensures that the <see cref="Update"/> method performs the external execution.
+        /// and ensures that the <see cref="Update"/> method performs the execution via context menu.
         /// </summary>
         /// <param name="divergence">the edge representing the divergence</param>
         /// <returns>the new edge</returns>
@@ -294,6 +294,12 @@ public Edge ContextMenuExecution(Edge divergence)
             return createdEdge;
         }
 
+        /// <summary>
+        /// Used to execute the <see cref="AcceptDivergenceAction"/> from the context menu in multiselection mode.
+        /// Creates new edges in the architecture to allow the given <paramref name="divergences"/> and ensures
+        /// that the <see cref="Update"/> method perfoms the execution via context menu.
+        /// </summary>
+        /// <param name="divergences">The edges representing the divergences.</param>
         public void ContextMenuExection(IList<Edge> divergences)
         {
             ExecuteViaContextMenu = true;

Assets/SEE/Controls/Actions/AddEdgeAction.cs

@@ -177,7 +177,7 @@ public override bool Update()
 
         /// <summary>
         /// Used to execute the <see cref="AddEdgeAction"/> from the context menu.
-        /// It ensures that the <see cref="Update"/> method performs the external execution.
+        /// It ensures that the <see cref="Update"/> method performs the execution via context menu.
         /// </summary>
         /// <param name="source">Is the source node of the edge.</param>
         public void ContextMenuExecution(GameObject source)

Assets/SEE/Controls/Actions/DeleteAction.cs

@@ -193,7 +193,7 @@ private bool MultiDelete()
         /// <summary>
         /// Used to execute the <see cref="DeleteAction"> from the context menu.
         /// It sets the object to be deleted and ensures that the <see cref="Update"/> method
-        /// performs the external execution.
+        /// performs the execution via context menu.
         /// </summary>
         /// <param name="toDelete">The object to be deleted.</param>
         public void ContextMenuExecution(GameObject toDelete)
@@ -206,7 +206,7 @@ public void ContextMenuExecution(GameObject toDelete)
         /// <summary>
         /// Used to execute the <see cref="DeleteAction"/> from the multiselection context menu.
         /// It sets the objects to be deleted and ensures that the <see cref="Update"/> method
-        /// performs the external execution.
+        /// performs the execution via context menu.
         /// </summary>
         /// <param name="toDelete">The objects to be deleted.</param>
         public void ContextMenuExecution(IEnumerable<GameObject> toDelete)

Assets/SEE/Game/SceneManipulation/GameNodeEditor.cs

@@ -79,7 +79,7 @@ private static GameObject GetText(GameObject go)
         }
 
         /// <summary>
-        /// Checks if the text object needs to be added.
+        /// Checks if the decorations of the node needs to be added <see cref="GraphRenderer.AddDecorations(GameObject)"/>.
         /// </summary>
         /// <param name="node">The node to be checked.</param>
         private static void ShouldAddTextObject(Node node)

Assets/SEE/UI/PopupMenu/PopupMenu.cs

@@ -160,15 +160,16 @@ public void AddEntry(PopupMenuEntry entry)
                 default:
                     throw new System.ArgumentException($"Unknown entry type: {entry.GetType()}");
             }
-
-            // TODO (#668): Respect priority
         }
 
         /// <summary>
         /// Adds a new <paramref name="action"/> to the menu.
         /// </summary>
         /// <param name="action">The action to be added.</param>
-        /// <param name="actionItem">Whether the standard item for the action entry should be used.</param>
+        /// <param name="actionItem">The item to be added to the PopupMenu.
+        /// If the default item is to be added, null should be used.
+        /// Another item can be, for example, the SubMenuButton.
+        /// </param>
         private void AddAction(PopupMenuAction action, GameObject actionItem = null)
         {
             actionItem ??= PrefabInstantiator.InstantiatePrefab("Prefabs/UI/PopupMenuButton", actionList, false);

Assets/SEE/UI/Window/PropertyWindow/PropertyWindow.cs

@@ -797,6 +797,11 @@ private TextMeshProUGUI Attribute(GameObject propertyRow)
             return GameFinder.FindChild(propertyRow, "AttributeLine").MustGetComponent<TextMeshProUGUI>();
         }
 
+        /// <summary>
+        /// Returns the value of a node attribute.
+        /// </summary>
+        /// <param name="propertyRow">a game object representing a pair of an attribute name and an attribute value.</param>
+        /// <returns>value of the node attribute or the name of the node attribute if it does not have a value (SubMenuButton). </returns>
         private string AttributeValue(GameObject propertyRow)
         {
             return Value(propertyRow) != null ? Value(propertyRow).text : AttributeName(propertyRow);

Assets/SEE/UI/Window/TreeWindow/DesktopTreeWindow.cs

@@ -414,7 +414,7 @@ void RegisterClickHandler()
                                     }, Icons.Hide)
                             };
                             IEnumerable<PopupMenuEntry> actions = ContextMenuAction
-                                                                   .GetOptionsForTreeView(contextMenu.contextMenu,
+                                                                   .GetOptionsForTreeView(contextMenu.ContextMenu,
                                                                                          e.position,
                                                                                          representedGraphElement,
                                                                                          representedGameObject,

Assets/SEE/UI/Window/TreeWindow/TreeWindowContextMenu.cs

@@ -22,7 +22,7 @@ public class TreeWindowContextMenu
         /// <summary>
         /// The context menu that this class manages.
         /// </summary>
-        public readonly PopupMenu.PopupMenu contextMenu;
+        public readonly PopupMenu.PopupMenu ContextMenu;
 
         /// <summary>
         /// The graph search associated with the tree window.
@@ -69,7 +69,7 @@ public TreeWindowContextMenu(PopupMenu.PopupMenu contextMenu, GraphSearch search
                                      Action rebuild, ButtonManagerBasic filterButton, ButtonManagerBasic sortButton,
                                      ButtonManagerBasic groupButton)
         {
-            this.contextMenu = contextMenu;
+            this.ContextMenu = contextMenu;
             this.searcher = searcher;
             this.grouper = grouper;
             this.rebuild = rebuild;
@@ -88,7 +88,7 @@ public TreeWindowContextMenu(PopupMenu.PopupMenu contextMenu, GraphSearch search
         /// <summary>
         /// Forwards to <see cref="PopupMenu.ShowWith(IEnumerable{PopupMenuEntry},Vector2)"/>.
         /// </summary>
-        public void ShowWith(IEnumerable<PopupMenuEntry> entries, Vector2 position) => contextMenu.ShowWith(entries, position);
+        public void ShowWith(IEnumerable<PopupMenuEntry> entries, Vector2 position) => ContextMenu.ShowWith(entries, position);
 
         #region Filter menu
 
@@ -98,7 +98,7 @@ public TreeWindowContextMenu(PopupMenu.PopupMenu contextMenu, GraphSearch search
         private void ShowFilterMenu()
         {
             UpdateFilterMenuEntries();
-            contextMenu.ShowWith(position: filterButton.transform.position);
+            ContextMenu.ShowWith(position: filterButton.transform.position);
         }
 
         /// <summary>
@@ -158,8 +158,8 @@ private void UpdateFilterMenuEntries()
                 entries.AddRange(edgeToggles.Select(FilterActionFor));
             }
 
-            contextMenu.ClearEntries();
-            contextMenu.AddEntries(entries);
+            ContextMenu.ClearEntries();
+            ContextMenu.AddEntries(entries);
         }
 
         /// <summary>
@@ -221,7 +221,7 @@ private void ResetFilter()
         private void ShowSortMenu()
         {
             UpdateSortMenuEntries();
-            contextMenu.ShowWith(position: sortButton.transform.position);
+            ContextMenu.ShowWith(position: sortButton.transform.position);
         }
 
         /// <summary>
@@ -250,8 +250,8 @@ private void UpdateSortMenuEntries()
             entries.AddRange(searcher.Graph.AllNumericAttributes().Select(NumericAttributeSortAction));
             entries.AddRange(searcher.Graph.AllStringAttributes().Select(StringAttributeSortAction));
 
-            contextMenu.ClearEntries();
-            contextMenu.AddEntries(entries);
+            ContextMenu.ClearEntries();
+            ContextMenu.AddEntries(entries);
             return;
 
             PopupMenuAction NumericAttributeSortAction(string attributeKey)
@@ -338,7 +338,7 @@ private void ResetSort()
         private void ShowGroupMenu()
         {
             UpdateGroupMenuEntries();
-            contextMenu.ShowWith(position: groupButton.transform.position);
+            ContextMenu.ShowWith(position: groupButton.transform.position);
         }
 
         /// <summary>
@@ -365,8 +365,8 @@ private void UpdateGroupMenuEntries()
                 GroupActionFor("Type",
                                new TreeWindowGroupAssigment<string>(searcher.Graph.AllElementTypes().ToDictionary(x => x, TypeToGroup), element => element.Type)),
             };
-            contextMenu.ClearEntries();
-            contextMenu.AddEntries(entries);
+            ContextMenu.ClearEntries();
+            ContextMenu.AddEntries(entries);
             return;
 
             // Returns the group action for the given <paramref name="name"/> and <paramref name="assignment"/>.