JustSomeGermanDude
Experted expert in expertness.
Yes, you can do so using Google+ pages. At least with a little workaround. You might need multiple emails in the beginning but can dump them later. I already had multiple channels with multiple emails when I did this. What I did:
I connected each channel to a Google+ PAGE. That way the ownership of the channel gets transferred from the Google account to the G+ Page, while the G+ Page is owned by the Google account. You can then make your designated main account a manager of that page. After 2 weeks of being a manager you can transfer the ownership of the G+ Page to your main account. The old owner becomes a manager and just "fire" him.
I connected each channel to a Google+ PAGE. That way the ownership of the channel gets transferred from the Google account to the G+ Page, while the G+ Page is owned by the Google account. You can then make your designated main account a manager of that page. After 2 weeks of being a manager you can transfer the ownership of the G+ Page to your main account. The old owner becomes a manager and just "fire" him.