This little plug is for those who want to use the ZProject brush for sculpting or polypainting but don't want their work offset.
Simply line up your subtools and then press the button or use hotkey Ctrl+W to clear the action line.
Unzip the zip file and place the .zsc file in your ZPlugs\ZStartup folder. Restart ZBrush and you should have a Clear Offset button in the Marcus Tools section of your ZPlugin palette.
Note: occasionally you may find the action line persists. Draw the line away from the center of your model and press the hotkey again.
I'll be interested to know if this helps those who were having offset problems with ZProject.
September 14 2007: Updated for ZBrush 3.1
Note: to use Clear Offset with a hotkey, install the plugin and then assign the hotkey of your choice by Ctrl+clicking the ClearOffset button and then press the hotkey you wish to use.