I think for those shooting both photos and videos with same camera on the same card it could speed up the workflow quite a bit if PM could be set to download all the photos before starting to download the much larger thus slower downloaded videos (or vica versa for videographers, but I guess some small photos don't cause that much trouble among the large video file downloads).
I don’t know if it can be easily implemented or at all possible, but I would love such a feature speeding up my work - but I didn't yet find in PM.
I leave implementation up to developers, but I imagine this option to work the same way as it works with tags. There is an option in the ingest dialog to download only tagged or untagged files and if I'm correct PM by default downloads tagged photos first in all cases. I would add another drowdown right below it:
1. Download all photos before other file types
2. Download all videos before other file types
