I wondered if there was a feature to edit multiple runs at once because of a new sub-category I've added. Adding a new sub-category after about 150 runs have been submitted is not fun. I would have to edit every run manually. If there is not a feature for this already, I suggest there be an option to automatically make every run that has already been submitted at the time be edited all at once to a particular option in a sub-category.

"Set the default for all runs without a value"?

Currently, there is no way to mass move runs, unless you use a script. @Meta has said that a mass run move tool will not be added for a "long time". But one should be added

Thanks @YUMmy_Bacon5 The "Set the default for all runs without a value" thing was something I completely overlooked lol.