Mac as a Keyboard issues

Hey people,
Got a couple of problems, maybe you can help me.

I got an app called Typeeto which allows to use Mac’s keyboard on my iPad. Simple keyboard shortcuts work fine but those that use modifiers only send the additional keys without the modifier (if there’s a gesture for cmd+C, my iPad only receives C). Is there any way to fix it?

Also, is there any way to create a trackpad gesture that will hold the mapped keys while fingers touch the trackpad?