Make functions collapsible in the code editor like Notepad++
This would be really great because I like using the built in code editor. I think using an external text editor defeats the spirit of what we are trying to do here with these "fantasy consoles".
An external text editor is pretty much required for Pico-8 and it tries to get around this with it's tab system and that's all fine & good, but I think that having collapsible functions + the wider work area & smaller font that Tic-80 has would be even better.