Can token values be evaluated in a complex datapoint?

Sorry I didn’t state what type of DS this was--it is WMI.

Your replies were both a lot of help. I added DRIVELETTER as a WMI class property name, and then constructed this groovy script with the complex datapoint name “GB_Free_C_CHECK”:

osDrive = property = instanceProps.get("auto.driveletter")

if(osDrive=="C:"){

return 1

} else{

return 0

}

then, I’m working off that datapoint to evaluate another expression datapoint:
if(GB_Free_C_CHECK,FreeSpace/1024/1024/1024,0)
 

Ideally I would like to combine both these into one for simplicity. But I can’t find how to evaluate instance properties within an expression (##INSTANCE## doesn’t validate), or perform math operations within a groovy statement (anything like freeSpace = (output["FREESPACE"] / 1024) returns NaN).