[HELP] Retextured Props

I need help installing custom prop skins to my fivem server.
For example i would like to know how to install these custom flags http://www.lcpdfr.com/files/file/12724-nswaustralian-flags/ to the server.

Just stream it like you would do with cars or peds

so like customprops? then follow the exact same steps like the vehicles?