Reply to Browser navigation help

I believe I may be missing something....I'm able to navigate through any playlist using the up and down arrow keys within the browser window using the vci-100 and then load either into deck a or b with the left right arrows, however, I've never been able to figure out how to change playlists in the playlist window? I've always used a mouse or the trackpad on the computer to do that.
Is there a way to change from playlist to playlist with some vci-100 button combinations I seem to have missed?

Thank-you
BC