I wanted to make a door with another texture.
1. Copy .dae, .ent, .msh files of the door (mansion) and paste it to the custom story folder.
2. Copy the three .dds files (_nrm, _spec) and paste it to the same folder. Name the three .dds the same as the others (.dae, .ent, .msh) with _ nrm and _spec.
3. Open the .dae file and inscribe the right .dds names in library_images.
4. Open model_viewer and open .dae door, .mat is created.
5. Open model_editor and open the door entity.
6. Choose the material for the door that I created.
7. Import mesh, the .dae file - crash.
Here is the library_image part of the .dae file:
<library_images>
<image id="mansion_dds">
<init_from>old_mansion.dds</init_from>
</image>
<image id="mansion_nrm_dds">
<init_from>old_mansion_nrm.dds</init_from>
</image>
<image id="mansion_spec_dds">
<init_from>old_mansion_spec.dds</init_from>
</image>
</library_images>