1) the upload menu is not straightforward. One should be able to add as many formats as one liked. In practice, two.
2) nowhere obvious has a style guide that says what the « usual » order should be for score formats. .mxl is an (unreliable) exported format. The source format is reliable provided that you can use it, and only there can you start to detect the possible errors that crept in. It makes more sense to place source first, if providing it. Not everyone does.
3) Muse is not really a good, obvious code for the Musescore graphic.
4) it’s not clear how to add transpositions of the exact edition. It’s not possible to do so at the same time as the main edition. I had to hunt down a few pages to see the wiki code.
So a complete style guide is badly needed.