Whenever I switch over from Edit/Transform Mode to use a brush like the SnakeHook Tool, I can’t figure out how or why I can’t go back to edit mode to do other things to it.
This is basic ZBrush. There are 2.5D tools in the Tool palette that ‘paint’ and can’t be used for sculpting. The sculpting brushes are in the Brush palette.
To get up to speed quickly on this, check out the videos in the ZClassroom:
http://www.pixologic.com/zclassroom/