Here is the way in Beta 7 to add your favorites visuals :

Put these lines in your config.ini after adapting them to your taste ...

[VisualFavourites_DSP]
count=13
1=Tripping Prisoner
2=Sugar Cube
3=Hofmann
4=Casualty
5=StarDust
6=Tux Much
7=Oscilloscope Zoom
8=Hula Hoops
9=Anna Vu
10=Clock
11=Analogue Clock
12=TimeShade 128
13=Off

For Player: [VisualFavourites_DSP]
For Auxiliary : [VisualFavourites_AUX]
Sorry for Tuner , I don't have One ...

My advice would be not to upgrade beta 11 ...

See my bug report for the favorites visuals mode ...