Customizing the metamodel : Symbols: Creating and modifying : Analytic depictions : Linking a depiction list to a symbol property
  
Linking a depiction list to a symbol property
In order for the depiction graphics to be linked to a particular symbol, you must associate the list with a symbol property. The form of declaration in USRPROPS follows:
SYMBOL <symbol name> in <diagram name>
{
PROPERTY <property name>
{
EDIT TEXT LISTONLY LIST <list name>
}
}
It is not necessary to use the LISTONLY keyword. When the LISTONLY keyword is present in a property declaration, the user is restricted to selecting one of the values in the list.