FOLDERS PLEASE 
Here is a suggestion for organizing subtools within a ztool.
Often I have to work on a sculpt with MANY subtools, -over 50. This
becomes very cumbersome to try and move quickly through the subtool list to hide certain objects in order to work on another while other areas need to stay visible as well for judging overall balance.
For example:
I am working on a suit of armor of some sort. The arm has 20 subtools. I have to turn off all 20 subtools manually if I only want the rest of the figure to show. This is very time consuming.
Why not have the ability to arrange certain subtools into folders?
Then, when I want to see just those armor pieces it is one click, or the same to hide them.
This is important because each arm will have 20 subtools, each leg, and so on. That is a lot to sort through.
Folders would be a life saver.