Hail fellow zBrushers!
So I’ve rebuilt the topology from a scanned model I am working on, and I’ve run into a bit of a problem with preserving the lowest level of the rebuilt topology while adding more subdivitions to add fine detail.
It seems as if my Tool has saved the level of subdivisions from when I created my adaptive skin, but it will not let me subdivide any more from that level (stuck at 5).
Now, I can “Make Polymesh 3D,” which will allow me to add more subdivisions to the Tool, but now I have lost the lower subdivision levels I need in order to create my displacement/normal map.

Is there a button that I am missing that will allow me to preserve the lower subdivision levels of a tool when making a polymesh 3D, or is there something else I need to do?
Any help is greatly appreciated. 
-J

Is it possible to rebuild the lower subdivision levels?