I know this is a very old thread, but what happened to it? I'd like to know what happened
to RedPheonix's request for a function to remove a file (read .MDL file) from the cache?

Using the existing level_mark/level_free functions is too coarse for many situations,
we just need finer control of nexus contents PLEASE.

What we REALLY need some function to allow us to remove EVERY trace of a of a
no-longer required entity, without disturbing any that have been created since.
We can create entities on-the-fly, so why cant we TRULY reclaim all the resources
that the creation consumed.