Ok i tell you example.
Say i have already done model.
Its a dae file, containing 6 different meshes,
which must be grouped in three groups (nodes).
Imagine i change something in this model in 3ds max.
Now i have to change the new dae file again, adding all those
nodes to group them again.
Usually i have to manually do that, every time i change something
i have to redo all DAE node hierarchy, every time. Every time.
Also adding to that repetitive annoying stuff:
every time you reimport model after to did some minor changes, it overwrites matlib,
even if i had not changed any material, and i have to save matlib every time before
i reimport something and replace the new with the old.
