inverse catheter and troy1617,
Whilst what you are suggesting would certainly be a great feature I think you need to think carefully about the implications from a performance perspective. Currently a single subtool can have up to the maximum mesh size that your system is capable of. That means that if you were to sculpt on two subtools simultaneously the mesh size could exceed your system’s capabilities, and just with two subtools.
Of course much of the time you might be sculpting well within those limits. But what should happen when you try something above those limits? A message saying ‘Sorry, you can’t do that.’ ? Such an arrangement would become frustrating very quickly.
As I mentioned earlier, if your system can handle combined meshes of the size you wish to sculpt then you’ve no need to use subtools. You can combine the subtools into a single mesh and sculpt away, using grouping and mesh visibility when you need to isolate individual parts. But implementing the sort of feature you are requesting, in a satisfactory manner, would mean lowering the mesh size limits for subtools and so removing a good bit of their advantage.
And troy1617, the 50 million polygon limit is a theoretical maximum. I don’t suppose, right now, there are too many systems that can handle that many polygons for sculpting.
HTH,