There are two popup menus available when you use the right mouse button.
The Windows Menu
By right-clicking on the background of the Main Screen, you can get a copy on the Main Menu | Windows Menu.
This makes it easier to close cards, rearrange them, or bring one to the top of the pile.
The Edit Menu
By right-clicking on any part of the white background of the Tree View Pane, you can get a copy on the Main Menu | Edit Menu.
This makes it easier to create new cards, find cards, sort the Tree View, or choose a list to edit.
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