Different pipelines standardize on different XForm op setups (T-R-S, T-orient quat-S, Matrix). Having this options means that this standard can be chosen at export time instead of having to patch on load. Speaking from experience, this is a very helpful option. Co-authored-by: kiki <charles@skeletalstudios.com> Pull Request: https://projects.blender.org/blender/blender/pulls/121627