Suggestion: better file drag'n'drop processing

If I drag 100 files into Mp3tag, I get a dialog box with a progress bar that stays at zero and a Cancel button that doesn't terminate the operation. It looks to me like what we have here is a flicker-book of 100 dialogs.

When I drag in a folder of 100 files, I get a good progress bar and Cancel button. Could we have such a thing for the multiple files case? Thanks.

This should be improved with the current Development Build.