A OneOf list box provides a list box that enables the user to select one, and only one, of a list of objects (Diagrams, Symbols, or Definitions) of a certain type. The object type referenced must have been defined already in SAPROPS.CFG or at the top of the USRPROPS.TXT file.
Similar to the ListOf list, the list of items provided in the list for a OneOf command can be filtered. Filter keywords are available such as OF DEFINITION REFERENCED IN and OF DEFINITION AND SUPERS REFERENCED IN.
Heterogeneous oneof list
A typical OneOf statement provides a list of one object type. Similar to the ListOf list, you may also create a OneOf list that references more than one object type using the HETEROGENEOUSONEOF keyword.
