How do I make FileMaker 13.0v3 the default?

Issue report by Gary Vogt

Product

FileMaker Pro

Version

13.0v3

Operating system version

OSX 10.9.4

Description of the issue

How do I make FileMaker Pro 13.0v3 the default version of FileMaker?

I have a LOT of version 12 databases and would like them to open using the new version without the need to open each file specifically from inside version 13.