Back in the days it was possible on scratchlive to select 33/45 on each deck. It was a very interesting option for creative purpose.
The best thing was to be able to power off the turntable at 45RPM and as the tempo was slowing down you power on again so the turntable reboot at 33RPM, and then you press start to make the platter spinning again so your track is now playing at 33RMP instead on 45.
This make terific transitions without having to spend time exporting your tracks at 45RPM.

The other thing was to trigger 33/45 mapped button when scratching, giving sort of downpitched effect.

Please, make these feature come back !
Peace.