ZBrushCentral

Clearing the lightbox tools

is there some way to clear the lightbox tools of specific tools? sometimes I am practising and I have too much stuff i tried in there so I have to restart Zbrush all the time to avoid having this build up, is there another way?

http://www.zbrushcentral.com/showthread.php?176896-How-to-clean-the-excess-3D-Meshes-in-the-tool-palette-Answered&p=1011378&viewfull=1#post1011378