assign teamxxx.iff to another team

how can I create a new teamxxx.iff file for an added team? The crowd is all silver and I don't know how to assign the teamxxx.iff to this specific team.

Can someone help?

Using RedMC edit the team tab (you need to have paid for this tab). The number will follow the GID. If the GID is 600 then the team file will be team600.iff. Of course you have to copy a file and edit it if needed. This applies to logo, dorna, floor, stadium and led files too.