This is a very limited model editor that lets you do things that are missing from other editors, but doesn't let you do most of what you can do in other editors.
What you can do
- Import a .pcx skin (this must already have the palette properly set by QME)
- Modify UVs
- Convert between MDL and OBJ formats
- Batch rename frames in a model by using a text file with frame names, one per line
What you can't do
- You can't edit vertex positions in frames.
- You can't edit skins