If you have an F1 you can map this without a footswitch.
The Filter On knobs send out hold messages when not at 0.
Map to Filter.1.On:
Flux Mode On > Button > Hold
Select/Set+Store Hot Cue (8) > Button > Hold
Delete Hot Cue (8) > Direct
I picked hotcue 8 as it's least likely to be filled.
This can be mapped to any filter on knob, I just chose filter 1.
I don't have Scratch but I stopped playback with the mouse - oneapemob says control vinyl works so it should work.
http://www.youtube.com/watch?v=RLEdLyt6v4o
Sorry for crap vid ;)