Hello Arno!
I have new suggestion.
1.Support Custom Data Fields in frontend upload form.
2.Add size field in the frontend upload and editing form.
3.Add alternative further external file links mirror 1 and mirror2 in the frontend upload form, like in the editing form.
4.Add category select field in the editing form.
Fact is that when you activate the options, that members can self edit his files, it is possible to change/add more informations in the edit form (after he has uploded).
1. i have it added in the edit form.
2. the size is auto set when you submit a file (for extern link i will add it in the edit form)
3. see above
4. ok, we can add it