[Therion] view several caves in 3D

Hi guys, I have several caves in the same area, and I would like to see them all in 3D. I have a .th file that have the links to all the cave.th and so I can compile to get the 3D model of all the caves, but, can I compile each cave independently and then join them all up in one 3D viewer, loch for example ? I’d like to pick the ones I want to see in 3D and not to have to recompile each time. Thanks, Phil