Two small feature requests

My process tends to involve a lot of erasing. And I would love it if I could simply right-click on the transparent background and then "paint opacity" rather than having to switch to the eraser to do it. I would speed up my process quite a lot.

Also, I would like to have some location on the interface show the mouse XY position within the current animation frame. (so I can better make sure the different points on a character are lining up without having to draw lines across the whole set of frames.

Thanks.