A beautifier & custom indentation are two things I’d love to see, one more than the other.
Personally, I prefer using 4 spaces (2 tabs in Glitch) for indentation. Seeing as the Glitch editor automatically does 2 spaces, I think there should be an option to be able to change this to a custom amount.
A beautify shortcut would also be really useful for some people. Although I wouldn’t be using this all the time, it could be useful sometimes.
Let me know what you think.