Add Arc shortcut keys list to Arc
Is your feature request related to a problem? Please describe. To know what shortcut keys are available in Arc user needs to be aware that this page exists https://code.cubewise.com/arc-docs/arc-shortcut-keys and needs to use external link/reference to get there.
Describe the solution you'd like To make list of shortcut keys more accessible, add contents of mentioned webpage e.g. to new tab in About page or add new button that will open a pop-up with same info.
Additional context I'm aware of issue #142 (closed), but not all of the users know/remember/are too lazy to go to external webpage/...
Additionally, Fold Region button caption is missing key shortcut.