I'd like to be able to select the lines between the script tags and indent/unindent them but SOs snippet editor doesn't respond to shift-tab for the content in script tags.
Here's an example showing usage and wanting a way to format the GLSL in the script tags without having to use an external editor.
This is tagged as a feature request. It is not a request for random hacky workarounds like exiting the snippet editor to edit the snippet (WAT?) or copying and pasting code from one section to another and back.
Of course workarounds are appreciated but SO is a site by programmers for programmers. In my experience most programmers given a pain point solve the pain by implementing a better solution, not by using convoluted workarounds.
Depending on the indentation, you may need to press ⌘+k several times.
Stack Snippets only support JS, HTML, or CSS anyway, so there's not much you can do there.
Runnable Snippets for other languages?