I am making an other wise static prop, but it needs to have cloth on it (a flag). I looked through the tutorial sticky, and in the documentation, but the section in the documentation is more about attaching pre-existing cloth to a playermodel, while I want to make a new cloth piece from scratch. Can anyone tell me how to create a custom piece of cloth?

Can you attach a reskinned preexisting cloth to the flagpole? or would the animations be screwed?

Well, I don't really know how to do that even, but all the options I would have would be skirts, capes, and kamas, and what I need are triangular and rectangular flags.