Request for Gmail Alias Feature and Token Suspension in Tasks

I have 2 features that either should exist or already do.

1.
In Gmail - sent from Alias/alternative email. I have 3-4 domains tied to my primary Google account. Would love to be able to send messages by account.
2.
Suspend after X tokens per task and per agent. It was my own fault - but created a loop that spent over $50 in credits on something that should have been closer to $1.