Metric added, [MusicWheel]::HideSections, will restrict showing one group at time, it you want to see the other groups use the next/prev group code, defaulted to "false"
Also group changing is allowed via gamebuttons in case of those who wants to take advantage of the codedetector too, "false" as default
SongManager::GetSongGroupByIndex, gets groups by index (helpful in Jump to group functions, thanks to juanelote for this too).