I've created a material which uses two StaticSwitchParamater's the first switching between a red and green arrow and the second between the first and 'nothing' this is then multipled with an elevator sign.

In kismet i'm wanting to turn these paramaters on and off dependant on the state of my elevator. The only problem i'm finding is that the only material instance option within kismet is scalarparam. In one of the 3dbuz videos there appears to be three. Have the other two been taken out since the videos were made?

what method could i use instead to turn the two parameters on and off within the material instance constant i have created from my original material?