Change area midi command is weird

Hello,

OS version: Windows 7 Prox64 SP1
CPU: Intel i5 @2.5Ghz
RAM: 4GB
Graphics driver: Intel HD 3000
Display resolution: 1600 x 900
rekordbox mode: Export / Performance
Plus Packs: dj / dvs
Model name of Pioneer DJ product used with rekordbox, Firmware/Driver version: DJM 450 - Firmware v1.02 / Driver v1.102

Details: I was looking for a way to go from the library list and the left (or right) panels for browsing.
The change area command didn't work that well.

Is there something like a focus midi command to change the area where the browsing is active ?

Also, how do you open/close folder with midi command from the left panel ?

Thank you.