Glad to hear you've figured it out, thanks for getting back to us!

I just didn't know where to find info about this; so many different info sources, and so many problem with how to describe the problem for google

Please always have a look at the spine-unity documentation page first. Also be sure to check out the example scenes that come with the spine-unity runtime.

Regarding the general runtime API, see the API Reference page here.

After that you can search this forum, and only afterwards we would recommend to check out any thirdparty sources, which are prone to be outdated.