Hi. I've noticed that the order in which files are uploaded affects compilation (in my case, I'm uploading several pd files for a custom patch). If the _main.pd file is not topmost, compilation fails.
To that end, it would be pretty useful to have a "drag and drop" interface for each file upload element, in order to make it possible to re-order your uploads. You know, the type with a kind of "grab bar" to one side, that allows you to rearrange the order of the list.