pior After update 2024 it has trim sheet tools. You can specify how to pack your mesh to a trim, and via color ID you can make pading that needed to make sure there no pesky seams showing. https://youtu.be/s_eXFbAuuuA
Trying to get that up now old chap :P Modeller is having an odd spat currently. I asked if there was a hidden update to the beta in the last fortnight... so trying a 300k quad one.