Fibaro Roller Shutter 2 - FGM-222 - Scene Activation?

I have a Fibaro Roller Shutter 2 and used the DTH from here - Fibaro Roller Shutter 2 - FGRM-222 (DTH in post 24) (UK Device)

There is talk on there that the device handler code allows for parameter 50 to be set to 1 (to activate scenes in the Fibaro, not to be confused with the scenes in ST). It doesn’t seem to show for me?

Anyone offer any advice?

In essence, I have a toggle switch which requires you to press and hold the up or down to move a blind to the right height. I want to allow a double click to fully open or close which I believe is possible with scenes in the Fibaro?

Thanks in advance!!