[Theiamania]

[PS CS5] Increase / Decrease Rubber or brush or Selection tools

Hallo to everybody,
fro a good work-flow I'd like to learn this shortcuts very well:

1 - Increase / Decrease Brush dimensions

1 - Increase / Decrease Rubber dimensions

1 - Increase / Decrease Selection tool dimensions

Bur, for example, I've read official guide and it suggest for Brush [ oder ] but these didn't work! I tried also ALT+ [ and ALT + ] but nothing...

And maybe there's a way to make that ( Increase/decrease ) by scrolling mouse?

THX!

(I've macbookpro 10.5.8 intel)