How do you make a script and a model?

I tried roblox studio i don't know how to make a script and a model.

Right-click on workspace, go to Insert Basic Object->Script or Insert Basic Object->Model

To make a script/model, simply right click on Workspace inside the Explorer, Insert Basic Object>Script

Same thing with model. If you can't do that, put this in the command bar (bottom of the studio)

Instance.new("Model", game.Workspace)