[Solved] Cross 1.4 Keyboard Mapping for Browse Up Down in Me

I have a couple of problems with using keys to scroll up or down in the media rack.
1. If using the premapped cursor keys to scroll up or down it works fine BUT after loading a track onto a deck, I have to use the mouse to click back onto the media rack before the cursor allow me to scroll again. Very annoying as I don't want to use a mouse when mixing.
2. If I try and create my own mappings for "Browse" there is only one mapping available - "Inc.-Dec. Button". This only allows my custom maped key to scroll down through the media rack, not up. I can't add a second to scroll up. This map does however work without having to click back into the media rack after loading a track.
One more thing, the preset maps for PC and Laptop keyboard are both locked and can't be edited - how come?
Any clues/suggestions please??
Many thanks for your time guys!!!
1. If using the premapped cursor keys to scroll up or down it works fine BUT after loading a track onto a deck, I have to use the mouse to click back onto the media rack before the cursor allow me to scroll again. Very annoying as I don't want to use a mouse when mixing.
2. If I try and create my own mappings for "Browse" there is only one mapping available - "Inc.-Dec. Button". This only allows my custom maped key to scroll down through the media rack, not up. I can't add a second to scroll up. This map does however work without having to click back into the media rack after loading a track.
One more thing, the preset maps for PC and Laptop keyboard are both locked and can't be edited - how come?
Any clues/suggestions please??
Many thanks for your time guys!!!