What's the quickest way to find all calls to some PL/SQL package?

Question

Here's my situation:
I have a large application (>100 pages) which has multiple calls to a PL/SQL package procedure X.Y occurring in various processes, conditions, etc on an unknown set of pages. The procedure is being moved to package Z, so I want to replace all instances of X.Y with Z.Y. What is the best way to do this?
I'm thinking of exporting the application, and doing a manual find and replace of all X.Y with Z.Y, then importing the modified export file. Will this work?
Alternatively, is there a report available which can be run to show something like this, given an input of X.Y, which shows all pages where X.Y is referenced :
Page Object
1 After-submit process abc
5 item P display condition
13 validation xyz
etc
If not, how easy is it to write such a report from the available apex views?

Answer 1

Have you looked at the Database Object Dependency report?
In the Application Builder, select your application.
In the Tasks list on the right, click on View Application Reports.
Under the Application menu, click on Database Object Dependencies.
It will make a list of all database objects used by your application and where they are used.