home.md

@@ -70,13 +70,29 @@ Here is a brief summary of main menus:
 * Selection of dark/light mode
 
 ## Code Editor
-* Left-clicking on the code editor provides the same edit menu as the one in the main menu.
+* Left-clicking in the code editor pane opens the same edit menu as the one in the main menu.
 * Clicking and dragging over text selects text.
-* Double-clicking words selects words.  The spellchecker allows alternative spelling or accepting spelling.
+* Double-clicking words selects words.  The spellchecker allows selecting alternate spelling or accepting the spelling of selected text.
 * Typing the first three letters of a word opens an auto-complete menu.  Tab completes a suggested word.
-* Edit functions, find and replace, and auto-complete shortcut functions are available using keystrokes, see menu "Help | Keyboard Shortcuts".
+* Keyboard shortcuts are available for edit functions, find and replace, and auto-complete.
 
 ## Main Graph
+The main graph displays the selected graph view.  A displayed graph consists of:
+* A trace (unless the global view at index 0 is being displayed).
+* Zero or more view objects.  View objects are activity diagrams, bar charts, Gantt charts, graphs, reports, and tables.
+* View objects at index 0 are global view objects.  View objects ad index values above 0 are trace-specific.
+
+View appearance is configurable:
+* The color and positioning of items and what view objects have borders are established when the trace generator is run.
+* Once rendered, positioning, theme colors, and use of borders may be changed using settings.
+
+View layout is configurable:
+* Select and move items.  See keyboard shortcuts for the graph pane.
+* Move edges by selecting on them and then dragging their grips.
+* Undo/redo movement.
+* Use context menus on nodes, edges, and view object regions to manage positioning, visibility, and bordering.
+
+## Navigation Column
 
 
 # Example usage