Export
Open the Export menu

The project badge menu.
Choose the destination

The resource folder name and its final path.
Read the result

Files written by a project with one prop and one structure.
What a prop produces
Each prop becomes a.ydr model named after the prop, with its collision embedded, and an entry in the resource’s <resource folder>_props.ytyp file.
A prop with no triangles is skipped, and the Checker shows a warning. If every prop is empty and the project has nothing else, the export stops. The other Checker warnings of exported props do not stop it; they appear in the Warnings section of the result as Prop "…": ….
Use it in a structure
In Structures, press 5 to open the Prop library, click From the project, select the prop, and click Choose prop. Each click in the scene places one. The positions are saved in the resource.
The Prop library on From the project.

An instance in a structure, with the Edit prop button.
Use it by script
Spawn the prop with its model name, the name shown on its card:resources/, add ensure <folder name> to server.cfg, and restart the server. Rageon does not add that line for you.
Troubleshooting
Export blocked: prop "…" has problems. …
Export blocked: prop "…" has problems. …
Export blocked: prop "…" has the same name as a part. Rename one of them.
Export blocked: prop "…" has the same name as a part. Rename one of them.
Prop … does not open: …
Prop … does not open: …
props/ is broken. Delete its card in the list, or repair the file, then export again.Export blocked: "…" has … problem(s). Open the structure in Modeling to see what is blocking it.
Export blocked: "…" has … problem(s). Open the structure in Modeling to see what is blocking it.
The project has nothing to export: no texture with layers and no structure, prop or emergency vehicle with content.
The project has nothing to export: no texture with layers and no structure, prop or emergency vehicle with content.
The destination folder exists and is not a resource. Choose another name.
The destination folder exists and is not a resource. Choose another name.
fxmanifest.lua, so Rageon will not write into it. Change Resource folder to a new name.