I have defined a class with operations, and the operations are used in several sequence diagrams.
Is there a way I can find out how many sequence diagrams are using one particular operation?
I can't remember now if EA 8 included the facility to create project browser scripts, ie ones that can be called via a right-click in the project browser. This is available in EA 9 and EA 10.
If it's there in EA 8, you can create such a script to perform the lookup. Offhand, you'd need to look in the tables t_operation, t_connectortag and t_connector to find the references.