Unfortunately Reuse Instance
is not available on Mac, due to some complexity with how opening files works there. As a workaround you can open Terminal and run this command:
open -n -a /Applications/Spine/Spine.app
This will open a second Spine instance. -n
means to open a new instance. -a
followed be a file path is used to specify which application to open.
Did you know you can have multiple skeletons in one project? Depending on your use cases, that may be even more convenient. You can use Import Project
to bring in skeletons from other projects.