How do I get Kivy to work with Pycharm?

I want to create a GUI with start and stop buttons for the python script I’ve written using Pycharm on my Mac. Kivy claims to be cross platform compatible with MacOS and iOS. But the Kivy install instructs to install it in the command window, ala unix, and wants python to already have been installed. Pycharm is installed in MacOS, not the unix command window, and I can’t figure out how to get Kivy to work with Pycharm. It’s the only free cross-platform GUI builder I have found. I’m not very comfortable with unix/command window terminal.

Any advice appreciated.