Combine Ring Blink into one subscription

I have 2 ring doorbells and one inside ringer, 2 blink cameras, and 2 Alexa Shows. I have one ring plus subscription. It is my understanding that I can get the ring and blink cameras combined into the one subscription.  I cannot get the ring subscription to recognize either blink camera.  The objective is to store and be able to view actions from all four then add two more cameras.  The blink outside camera works on the single free blink subscription. The two ring doorbells work on the paid ring subscription. The remaining blink works well but does not record since I have not paid for a separate blink subscription. .  What more to try?