I and others here at Gentle Giant Studios are in dire need of something that ‘seems’ to have gone to deaf ears, but I hope I am wrong. Coming from a traditional sculpting background (as opposed to gaming) we appreciate the subtools list. We’ve learned that when it comes to digital sculpting and using the 3D printer, making a large number of subtools that intersect helps in many ways.
Speed. It would take too long to make a single mesh with proper edgeloops, etc, to finish a model. Multiple meshes that intersect is way faster. This goes for guns, tanks, and biological things where they have accessories like belts and bracers. And from what I understand Pixologic wants artists to move intuitively and quickly.
‘Hopefully’ you will understand this conclusion: We need folders in the subtools list. Folders that can collapse and be hidden. For example an arm with all of its accessories - weapon, bracer, armor. In this way we can then sculpt on the body without all the ‘arm area’ subtools getting in the way.
Here are issues that we have precisely because we do not have folders:
In the subtools list we will have 40 or 100 subtools … organizing them is essential. At the bottom of the subtool list you will see the arrows that allow you to move the subtools up and down within the list - well guess what? A delete button is right below it … we are OFTEN moving subtool position 98 to position 3, that means hitting the up arrow a 95 times, which in turn means the hand gets tired and BAM we hit the delete button, or worse yet hitting the delete button three times. And of course that we have to hide ten subtools that are on the arm, this takes too long. If the arm subtools were in a folder we could just collapse and hide the folder.
Lastly, for gamers, an entire scene with multiple characters could be in one ztool - each in its individual folder, ready to be hidden and collapsible! Could you imagine … folders within folders … extrapolate! When computers are strong enough entire cities could be in a hierarchy of collapsible folders. Full character folders within full scene folders within full town folders.
Well anyway, we just need it now for a single character, or two 
EDIT After talking about this post with a friend we came to this thought: Maybe Pixologic will read this and think ‘Does Brandon think he’s an ant on the forearm of some scifi character looking at the perfection of subtool intersection? We can’t … an artist can’t, be so tied to molecular perfection. Practical reasons ‘not’ to create folders: Create the arm and arm accessories, merge subtools, make each ‘former’ subtool one polygroup. The subtool itself will act as a folder, the polygroups allow enough control of meshes with the subtool. Wah Lah - this issue is resolved.’ Hmm, yeah maybe.
Thanks
I’d just like to remind you of a feature of SubTool Master - nothing close to what you suggest but perhaps useful for avoiding the delete button - the ‘