How would I go about creating a GUI/Screen and assign it to a keybind

[constantdeenos]

I have already set up Keybinds I just have trouble figuring out Guis/Screens. I don't mean a container Screen btw. Any help is appreciated.

Edited September 20, 2020 by constantdeenos

[constantdeenos]

9 hours ago, diesieben07 said:

What do you mean by "assign"? Do you want to open the GUI when the key is pressed?

Yes exactly, but tbh I have difficulty with creating a gui in the first place