Hotkeys

I'm used to using windows keyboard shortcuts combinations such has ctrl. > to reach the end of a word.

It's frustrating that when I use this key combination in Express Scribe it makes the entire audio skip to the end.

a. Is there a way to prevent this from happening?

b. Is there a way to continue using windows keyboard shortcuts when using Express Scribe?

thanks

And another related question:

I have assigned hotkeys to start and stop playing the audio in ES.

e.g., the tab key to start playing

but if I minimize ES and move into another program (e.g., Word) the tab key doesn't work in the new program and still begins playing the audio.

Is there a way to prevent hotkeys from working when Express Scribe is minimized?