I don't know if this is the right topic for my question, but here goes:

I want to make a driving simulator and a user-friendly level editor to create and edit driving environments for this simulator (2 applications). This level editor will consist of a top-down (2D) view and will allow users to create an environment by simply clicking on building blocks (e.g. roads, traffic signs, buildings, etc.). The created environment will be 'translated' into a 3D environment in the driving simulator. I am trying to figure out if I can use 3DGS for this, and I hope that someone can tell me. Can I use the 3DGS SDK in combination with C++ to create game levels (.WMB files) or is it only possible to create levels with the WED editor?

Thanks in advance!