Thanks for asking that question, just got SP4 and was wondering the same.

I wish we had a brush history panel also. A very good feature. Maybe some day ?

I also have Wacom med. tablet, Windows 7. I never use the pen eraser, but tried it and it did the same. Tried with Painter 15, works fine.
Must be in Paintstorm. Use the eraser tool, it works OK, just a few extra clicks with your stylus.

I asked the same question, and was told that "previous brush" was not available at this time.

I created new category, for texture brushes. Now want to move brushes (texture) from "Double brushes" category to the new category. How?

Addition to my post about selection - 3 March : Be able to move a selection to a position, BEFORE painting in it. Similar to "selection
adjustor" in Corel Painter.

After making a selection, be able to move it within the image.

Clicking on the brush name does nothing.

Tried to re-name. Double clicked on name. Nothing happens. I created a new brush category to put all texture brushes. After loading a texture
brush from Double Brushes category, only the name "brush" appears. Can not change the name. Any suggestions ?

Please consider to have a small panel that shows the last 5 or 6 brushes used. Corel Painter has this. I use every time. With one click, can
return to last brush, blender, eraser, etc.