(2020-12-20, 16:50)Don Heyse Wrote: Would it be a good idea to standardize a 0 MIRROR_INFO comment line for this in the official parts? Apologies if that's already done.
Do you mean adapting the 0 !LDCAD MIRROR_INFO into the offical spec?
I think that has already been suggested a while back, but the biggest problem is (just like with snapping) most authors don't want it added to their workload.
This is why LDCad uses a shadow library, which is a second collection of .dat files which content is merged with similar named official content before the program begins parsing the file as a whole.
The merge operation is also the reason you can (if you want) add any LDCad snapping and/or mirroring meta directly in LDraw parts if you wanted to.
I maintain the shadow myself so it doesn't interfere with the official files but it is a huge task for just one person.
Luckily I do receive some help from a small number of people now and then so you are welcome to join that effort.