Installing object and road packs

Objects → Import objects or a pack (.zip)… installs a whole pack: objects, road types and textures, however deep they are in the zip. Zips inside the zip work too, and there's no size limit.

• Files that already exist are kept, not overwritten.
• The object catalogue refreshes afterwards.
• Readmes and author notices are kept with the pack.
• In a Team Create project, the pack is listed with the project, and members who don't have it receive it from someone who does.