The image below shows two bone layers (Bone 1 and Bone 2) with point binding with their respective vectors (Layer 1 and Layer 2). If you need to join the two bone layers, the only way i know is to copy-paste bone(s) from "Bone 2" to "Bone 1" and then copy-paste vector(s) from "Layer 2" to "Layer 1" OR to move "Layer 2" under "Bone 1". In both cases, the point binding breaks. So is this a bug, and is there a work around (except manually binding the points again)
Sorry, I meant to reply in the other post but I found a script that can merge bone layers. Unfortunately, I'm not sure it works in the current version of Moho, or more specifically I wasn't able to get it to work the way we want for this situation. I'll let you know if I find a solution.
FWIW, I just re-bind my art, which usually isn't a big deal for Use Selected Bones For Flexi-binding because I can select multiple layers and bind them to a bones selection in one go. But for Point binding it can get trickier of course, so, yeah, this would be a good feature to have built in.