Has anyone figured out how to access the measurements of an actual measurement set via queries. The Actual Property Set was created for a Capability. Now I'd like to apply table legends to adorn the rows for Capabilities with "High" priority. I've tried to simply create a custom column but the OCL script simply cannot be evaluated. Any help greatly appreciated.

self.actualPropertySet->exists(aps | 
    aps.name = 'projectPriorities' and 
    aps.actualMeasurement->exists(am | am.name = 'priority' and am.value.asString() = 'High')
)