As of now, subaccounts are able to see the billing details and also are able to create subaccounts on their own. Also there is no way we can restrict Event Segmentation for certain sub accounts.

Can we restrict/change the billing plan so that they dont have to know that it is a lifetime plan?

Can we restrict access to subaccounts on certain features like Event Segmentation? As event segmentation has fixed allowance, we only want specific sub accounts to be able to use these features.

Subaccounts, as of now, are ablo to see the other subaccounts. Can we restrict access to the other sub accounts?

Also, can we restrict the sub-accounts the ability to create sub-accounts?