In addition to "Attach," there is the ability to "Link," assuming we're talking about iClone.
The online HELP does a pretty good job of describing the differences, and that's someting I need to review again. How do you know if you want to Attach or Link?
I do know you can Key Frame "Link," which is good when you don't want the laptop connected to the avatar the entire time.
TIP: Options that are BLUE (such as "Link") can be key framed.
iClone 7... Character Creator... Substance Designer/Painter... Blender... Audacity...
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