Hi,
I don't think I am aware of the complete list of PCEm's hotkeys, but if there isn't something already available (couldn't find them), the following ones would be tremendously useful while running fullscreen:
- Hard Reset
- Quit (ALT + F4 doesn't seem to work)
- Change Floppy A/B
- Eject Floppy A/B
While going briefly in windowed mode and accessing those functions through menus takes only a couple seconds, it's all about preserving the... suspension of disbelief