Rerouting folder shortcuts on menu

Hi, I'm new here, though I've been using PortableApps for just under a year now. I'm wondering this: is there any way to reroute the folder shortcuts (e.g. My Documents, My Music, etc) to new locations? I'm wondering because I currently have ProtableApps installed on my MP3 player, and would like for the "My Music" link in the menu to direct to "%root%\MUSIC", instead of "%root%\Documents\Music"

Thanks in advance!
Geoffrey

P.S.
I greatly apologize if someone has asked something similar to this. I did conduct a few searches with varying keywords relating to this, and received no results.