We need a button to cancel from the UI to stop copying Production data to a sandbox once initiated

Problem

As of now there is no way a customer can stop the initiation once a copy of the prod data is initiated to sandbox. Even without attachments it can take close to a day or more than a day.

Suggested Solution

If an estimation of the time is shown on the UI, then customer should be able to make a decision to continue or not by using a cancel button from the UI.

Why This Is Important

This gives the customers an opportunity to decide whether to go forward with the copy of production data based on hours it can take

Workaround

(Add a workaround, if available)