Goals & auto-save
Not built. This page describes an intended design so it can be judged before it exists, not a feature you can use.
Status
There is no auto-save contract, on any network. The card on the app page says the same. When it ships, this page will describe what was built rather than what was planned.
How it would be set up
Scheduled dollar-cost averaging: you would grant an allowance for a specific amount and set an interval and a target. The scheduler could move that allowance and nothing else — not the rest of the wallet, not more than the total set — and would stop once the goal was reached.
Cancelling would be a matter of revoking the allowance: immediate, and needing nobody's cooperation. That property is the reason for the shape, and it is what the implementation will be judged against.