dunno if you can add this, but thing as win explorer has,
a button that has icon (folder with arrow up) and itz funciton is 1 folder up

so if you can give this for like 1 mix up or big up...
coz it is kinda annoying if user browses thru mix files or big or whateva and opens mix inside mix and now there is no button for 1 position up (back) but you have to open again 1 file and then find that another file and open it

could be nice to add...