I have a Fibaro FGS223. Parameter 28 & 29 is used to set which actions result in sending scenes.
example 2 = key pressed 2 times, 4 = key pressed 3 times.
This parameter should be a multisilect list, 6 = key pressed 2 times & key pressed 3 times.
I use openhabian2 and with habmin or paperUI this parameter is a single list item.