Regarding the second suggestion made in the Issue, i.e. to have a secondary material input for an alternative node tree when teh checkbox is ticked:
I have not implemented this because it is easily solved using existing mechanics.
- Create two node trees for a regular and alternative material (needs to be done manually anyways)
- Create a reroute node for each trees final output just in front of the output node
- When going into the node editor to tick the "Exclude from override" checkbos (nneds to be done manually anyways), connect the alternative node tree to the output
Related GitHub Issue: https://github.com/LuxCoreRender/BlendL ... issues/547
The change is currently on development brach for_v2.10 and will be included in the next release.