In structure designer for dimension set hierarchy where we provide an acceptable value for a particular dimension we can use a special syntax which allows to use wildcard characters, specify range etc.
Where can I find a full list of possible expression operators (a reference or user guide) ???
Pressing F1 gives me just a short intro:
"The value of the specified dimension or ledger account. For example, stating p*, !Proj means that departments starting with p, but not Proj, should be listed in the hierarchy. The system includes those values created in expressions automatically in the dimension hierarchy instead of dragging and dropping. "