You can replace text throughout your project using the Project Find command, or you can replace any text in a single file by choosing Edit > Find > Find.
To replace text throughout your project:
These are the options in the pop-up menu:
If you want to replace the text in all entries, don't select any. Project Builder automatically performs the replacement in all of them.
To examine an entry in the list, click it. Project Builder displays the file and selects the Find text.