All good things come in threes.
This plugin script was developed for piomode in an earlier thread but I’m posting it here (with a slight modification) in case others might find it useful.
DrawSizeSweep provides two hotkeys:
Hold down ‘1’ and sweeping the mouse or pen to the left or right across the ZBrush interface decreases/increases Draw Size.
Hold down ‘2’ and sweeping the mouse or pen to the left or right across the ZBrush interface decreases/increases Focal Shift.
Note: just move the mouse or pen, don’t press the mouse button/pen tip.
Tip: Moving the mouse or pen quite slowly changes the size more quickly.
To install DrawSizeSweep unzip the zip file to your …\ZBrush2\ZStartUp\ZPlugs folder. Next time you start ZBrush two buttons will appear in your Zplugin palette under the More Plugs subpalette and the hotkeys will be available. Please be sure to read this information on user ZPlugins.