Topic: Shortcuts to change the Buffer Size

Hi everyone !
I just wanted to know if it was possible to change the buffer size via keyboard shortcuts. I'm working on some heavy orchestral projects with lots of vsts, and i switch constantly between high buffer size setting (with every reverbs and FX on - for mixing) and low buffer size (without reverbs - for recording the midi parts).
Since i waste a lot of time opening/closing my digiface setting panel to change the buffer size, i was wondering if there was a way to make the whole process quicker.
Thx.

David