Please add the "download all files" option per student, not just for the whole class, and change the download button so that it does not open a separate window when downloading individual files.
These changes would save time by reducing the number of clicks for teachers. I often have assignments where students turn in up to ten files. Downloading individual files is tedious because I have to click each file and then close the corresponding tab, then navigate back to the assignment window and download the next file.