In RFEM 6 and RSTAB 8, you can freely set all keyboard shortcuts.
To do this, open the "Customize" dialog box using the menu "Options Customize Menus and Toolbars".
Click "View" in the "Categories" list on the left, then double-click "AI Assistant Mia on/off" in the "Commands" list on the right.
Here you can define a new keyboard shortcut.