Implement Meta key (windows key) just like Ctrl, Alt and Shift. Let me know if you want want to implement it as usual key press. And indeed, it sounds good to have normal key press option (not toggling) for all Ctrl, Alt, Shift and Meta keys.
Besides, I was thinking about to implement the "Menu" key (in a usual keyboard) but it seems that Android recognize such key.
Implement
Metakey (windows key) just likeCtrl,AltandShift. Let me know if you want want to implement it as usual key press. And indeed, it sounds good to have normal key press option (not toggling) for allCtrl,Alt,ShiftandMetakeys.Besides, I was thinking about to implement the "Menu" key (in a usual keyboard) but it seems that Android recognize such key.