Default (Q) Switching email address for Play Store Paid Apps

Ok i got 2 Gmail account and both have Play Store Paid Apps.So in order to get all my Paid Apps to install on my phone i have to sign in into both Gmail accounts .

How do / or is there a way to transfer all the Paid apps under Gmail #1 to Gmail #2 ??
so that all my Paid Apps will be registered under one Gmail address.

i tried Searching but nothing come up as to what i'm wanting to do.

thanks