PPROPS name list
PPROPS is a handy method to store multiple properties into a property list. The second input to PPROPS is a list of property pairs. The first word is the property, the second value is the property value for that property. The list must be of even length.
? PPROPS "JOE [SEX MALE AGE 24]
? GPROP "JOE "AGE
? GPROP "JOE "SEX