Maybe I am unaware of a feature, but to my knowledge the way to issue a global hotkey by pressing a button on a toolbar of a window other than the main window is as follows:
- Add a Global Key Command to the Map Window in which you want the activating button on the toolbar.
- Add button text, tooltip text and button icon graphic as desired
- Define a Global Key Command to initiate the desired action
- Define a Global Hotkey trait in a Game Piece that will be “triggered” by the Global Key Command defined above
The request is for a Global Hotkey sub-component of any map window that can have a button in that map’s toolbar like a Global Key Command sub-component of a map window in Vassal 4. This could be like the Action Button described here: VASSAL Reference Manual