pegasusearl excuse, I'm still trying out spine trial. I followed tutorial in it's said when I'm creating bone while holding left mouse button then press shift, I can highlight image which will be linked to the bone. But I can't, It does not even highlighted. Hmm I wonder why...
warmanw To attach an image to a bone while creating it, select Create tool then while holding down Ctrl/Cmd key, select attachment you need. You can also select multiple attachments using box selection.
Nate Sorry, that video is very old (5+ years). It was changed to ctrl, as warmanw said above, to match everywhere else in the app where multiple selections are made by holding ctrl.