Feature Request - Load / Save MIDI File - Sort / Search

Dear Modartt,

Huge thanks for offering a Linux version of Pianoteq.

Would it be possible, please, to make the `Load / Save MIDI File` dialogue boxes column-sortable on the excellent Linux version?

On the Load MIDI File dialogue box it would also be super useful to be able to search the current directory, or select a random file and type a few letters to jump up or down the list to the closest match.

If not, no worries.

Thanks,

Alex.