Similar to the terminal open button with a configurable runner (or default if the user doesn't add one), an open in editor button would be placed on the top right toolbar. The icon would be a pen or notepad, and the text below would say "Editor"

(Around where the new button would be located)

This reduces time for developers working often with multiple repositories using the UI, as the current alternative, as far as I can tell, is Actions -> Open in file manager -> in file manager: open with -> code editor. It also has a nice UX, and might be expected by developers coming from GUIs like Github Desktop

(from GitHub Desktop)

I would love to do it myself but I'm not so familiar with java and the libraries in use here. Thank you to everyone for their work on this excellent project.