Hi Jochen,

I noticed that survey shots and splays ( and I guess LRUDs) seems to be overlayed following the order in the table and not their respective depths (or front vs back for profile). this become very obvious with a important number of splays. This issue is present for Plan Profile and Perspective mode at least.

This is quite obvious on the screenshot below (Perspective view) as the cave is seen from above but the lower galerie appears above the higher part of the network.

I think this is a very good option to enhance the Volume mode, but it would be great to solve the overlapping issue in all other modes.