This is an open bug.
I too hit this issue so I created EditorScript Launcher. It adds a hotbar with buttons for each of your editor scripts so you can write scripts to speed up your Godot development. Scripts can specify custom UI so you can pass parameters.
You'll get a new "Script Launcher" button on the bottom toolbar that incldues buttons for all of your scripts:
The buttons display below the scene view so you can see what you're modifying too.