Double E for prev Brush / Erase with current brush

[hced]

Hi!
I have two suggestions, or potentially questions since I don't know if these things are possible in Paintstorm. (PS. I love this app so much. Just bought it.)

Double E for previous brush

Krita has this nice feature where you can press E for erase, and then go back to the brush you previously had and continue painting. It would be such a nice usability improvement if Paintstorm could do this too.

Erase with current brush

I'd also like to be able to use the current brush as eraser. Is there a quick way to do that? If not, I'd like to see that feature as well since that's also useful, only handling one single brush for paint and erase.

[support]

Double E for previous brush

This is not possible, but you can hold E, erase, and release E to return to the brush.

Erase with current brush

Rollover mouse to the "switch to eraser button and press Enter to bind a hotkey