I've been using PSE for about 14 years now, have multiple versions installed: PSE 10, 14, 18, 20, 21,22,23 (I download them from my Adobe account as needed.
I also like to see if weird key shortcut combinations or right mouse clicks make anything happen.
A day or two ago I found this out, and I like it.
Yes that's very convenient especially if one closes the Tool Options panel to get more room for the image.
If you add Shift to the right click you get a Brush Modes list.
that's pretty neat--- I've been getting use to using a drawing tablet so that will come in handy, thanks for posting it.