I'm just getting into BeamNG modding, but I love that there's a fork of the Blender Jbeam editor for 5.x (especially after the 0.39 update added HDR lighting previews that only work in 5.x).
(unofficial) Version 0.2.71 - added a check to prevent duplicate node names during renaming. - fixed broken cross-part beam visualization when dynamic beam coloring is enabled UPDATED ----- 12/11/2026 ------ - Fixed improper handling when mirroring edges onto existing nodes at identical coordinates on the opposite side, which resulted in creation of phantom (non-jbeam) elements. (I'm testing it on Blender 4.5 because of the official .dae support)