The engine has now important and essetential new features. In the current very early release it wasn’t possible to delete models, meshs, materials and texturemaps at runtime, but now it is.
You can create models, create an instance of them and update or delete single texturemaps at runtime. If you don’t need models anymore just delete them. If you use instances you have to be sure not to update the real model’s textures or delete it, because deleting or updating it would result with the same effect for all instances of it.
More information soon with the release of the next engine source code.