It would really be very useful to be able to specify multiple projects to copy from in a single copy artifact box. We have very complex pipelines, and copy artifacts from up to 10 upstream projects, each time using two copies (once to get the latest from our stable release, then once to get the latest from our dev branch but optional, because it may or may not exit). So we end up with up to 20 boxes, making the page super slow, hard to maintain, hard to visualize.
If we could select multiple projects in the copy artifact line, which all would be copied using the same settings (optionality, filters, etc.), it would make life much easier. Checking the list of projects would be much simpler, adding one to both copy "strategies" would also be trivial (copy paste the modified line), etc.