#DECLARE (declare a user-defined symbol)

#ALIAS (access a symbol from another instance)

#EQUATE (declare and assign value to a user-defined symbol)

#ADD (add to multi-valued symbol)

#DELETE (delete a multi-valued symbol instance)

#DELETEALL (delete multiple multi-valued symbol instances)

#PURGE (delete all single or multi-valued symbol instances)

#CLEAR (clear single-valued symbol)

#FREE (free a multi-valued symbol)

#FIX (fix a multi-value symbol)

#FIND (super-fix multi-value symbols)

#SELECT (fix a multi-value symbol)

#POP (delete and re-fix a multi-value symbol)

#SET (assign value to a user-defined symbol)

#UNFIX (unfix a multi-value symbol)