Js code of scripts and javascript fields storable and downloadable from a repository
When you write a script or a javascript field it is already possible to link to the script some js libraries stored on github.
As scripts become more complex it becomes more and more difficult to manage them on a smartphone. It would be very useful to be able to store scripts on github (or gitlab, or bitbucket) and load them with a button just as if they were libraries.
So the idea is: before the button "Add javascript libraries ..." add a button "Add javascript code ..." which inserts into the code panel a js file present on the repo.

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John commented
It would be really useful. Long and complex scripts could be easily maintained, and higher quality databases could be built.