BTT while using Parallels

Hello,

Currently, I have BTT completely disabled while using Parallels. However, I find it sometimes that I do want to use some BTT shortcuts. How can I enable some buttons while in Parallels but over the menue bar, or at the dock? is that possible?

Or can I make special shortcuts and button specific to a sigle app? so if I switch to anothwer app, I can assign a different set of buttons?

Thank you