Voxel Cache or Reconstruction

In addition to better Trim/Line Project tools and Sculpt Layer. I would like to have something like a Voxel Cache with which you can recunstruct the origin object.

Imagine you can set a certain sculpt object for caching it would be possible to unstroke, untrim, etc. specific parts of that object.

Another Idea with better trim tools you could cut/extract certain parts of an object which will set as an caching voxel object. Optionally set it to a new object within the "Outliner"

This would bring a lot more flexabillity into sculpting.

In account for Layers, we can maybe organize objects within the "Outliner" and extend it with this feature.