<aside> ☠️ For clean up purposes it is best not to join armatures at this point. All ‘Bone Doctor’ functions work on a per-armature level so it is best to work on individual bone chains until you want to finalize your armature and join it together.
</aside>
‘Join created armatures’ will create a single armature after converting edges to bones. This is disabled by default, creating a separate armature for each separate edge/bone chain
Having separate armature objects allows for much easier clean up later.