Well the other day i was
surfing the web, and i came across this blockmaker / course maker.
i believe it's by zacky.
i don't have the models, but you can replace them with any models with poles, or create your own.
i might be quiting CS and all this stuff soon so there is no use for me to keep it.
edit #1: it has not been tested so im not sure if it works.
edit #2: Found + Uploaded models