Questions about eSIM Pooled Data plan

Hello, I have the following questions regarding the eSIM Pooled Data Plan:

  1. Can I dynamically add and removed routers from the data plan outside of the subscription period?

  2. Is there a limit to the number of devices on a plan?

  3. If I reach the data limit prior to the end of the subscription period, what are my options?

  4. What service providers are used in the USA?

  5. Is there an activation fee per device?