I've found it annoying having to add a repository, wait for it to load, then having to scroll back down to add the next one. I've seen this system used in similar development type interfaces so I propose it here for you to allow us to check a box next to each repository we want to add when making a new project and adding them all at once, and only having to wait once and not having to scroll up and down a ton of times trying to find where in our list of repositories we were. It would make it a lot faster to do things and the creator companion should be able to handle queueing and downloading them all in sequence instead.