Any way to get ugc rigs into studio?

As said by the title I was wondering if there is a way to get UGC rigs into studio? I looked for a while all I can find is how to get into the UGC program so here I am asking

This should help!

asset importer plugin, copy any ugc id then you can paste it into the plugin!

I tried that but it didnt work with rigs so Im kinda stuck

works for me using the plugin, did you use the plugin?

Oh no let me try that out soon

it was in this link

Well it says that its not trusted and I cant find a way to fix that

Im not sure what else you would use so…