Now that it's possible to give some weapons that couldn't be given to the guards before, how do I change their skin?

I have seen that it is possible to change the default skin of the guards for the skin of the mannequin, but I tried others and the session does not load. Apart from the mannequin, is there more skin that can be changed?

I would also like to know if I can put my own skins, but below the dummy skin there is a dark green bar that I don’t know what type of file it is.
Can you change the skin of the guards with Verse?

Thank you all for trying to help me, and good luck with your maps.

Thank you for your feedback. While cannot guarantee a response, I can confirm that this has been forwarded to the appropriate team.