You cannot wear a Hat model in a game on ROBLOX, you can only wear ROBLOX's hats in the catalog.
Freee model
Open the model, select the model, then, click on File, Save Selection As Model. If you want it as a model, select it then Publish Selection to ROBLOX.
The easiest way to name a model on roblox is to do it when it is created. First when you are creating a model in roblox studio click the new model button. Here there will be text boxes to name and describe your model, as well as a box to mark it as free or not.
it is a building item
A regen button on Roblox copies a model and then waits for you to stand on a button. When you touch the button it either removes the old model and then pastes the copied model, or it just pastes the model without removing the old model. There is usually a debounce line at the end to make sure that the button can only be pressed once every three to five seconds.
by pressing delete?
studio
My ROBLOX > Character > Models
You can use free model
You have to make a model make it public domain and you can get it as a free model.
In Roblox Studio click the model, then go into Edit>Delete