1) Switch into Separated Mode
2) Open a document or create a new one.
3) Select the Paint Mixer Brush.
4) Drag the document window so the status bar disappears at the bottom of the screen.
5) Drag the window back so the bottom is in view.
6) Status bar info, shortcuts etc are not re-drawn.
7) Choose another tool, then switch back to Paint Mixer Brush. Shortcuts are now displayed.