Map changing

I want to make a ymap with the server logo at the police stations walls, how i can do it?

Firstly you’ll need to stream the prop (as it’s a custom one - see this: [How-to] Stream addon props )
Then, use CodeWalker to place it down (if it’ll be on the exterior as a YMAP (create a new YMAP to avoid issues and place them down), if inside adjust the vanilla YTYP file (or a modified YTYP, if you have a modified interior for the PD))
Although TBF I’d stay away from shoving your server’s logo on buildings like that, it’s a great immersion breaker.