Model Database

[Doomerdinger]

The README mentions that one feature of phobos is

Tools for maintaining your own model database

I've poked through the docs and don't see any explicit mention of this. If some documentation exists, could I be pointed to it?

Additionally, does phobos support stitching together multiple models into one greater definition? As in, I create a database of sub-components that I then want to stitch together later into a fully realized scene. I see in some of the CI documentation things relating to this, but I am not sure that is the correct mechanism to chase down for this functionality.