I noticed the trello board said this is now done for the libgdx runtime.
How should this be implemented, should this pseudo be sufficient?
SkeletonAttachmen attach = new SkeletonAttachment("mynewattachment");
attach.setSkeleton(myAttachmentSkeletonReference);
someSlot.setAttachment(attach);
This alone seems to disregard the slot's position in the world, and the attached skeleton just seems to play about relative to the origin (0,0)