I am a programmer and I could definitely make and share decorators that have been suggested pretty easily. I don't know if its possible in godot to load stuff without compiling it through godot.
I understand its a completely different program but I have made some really cool decorators in MMCensor because of how their system works. I'm sure you've seen it but https://github.com/solarorb93/MMCensor here is the link to that project. Basically you can just make decorators with python. Something similar would be really cool as I think hotscreen is the superior product.