How to revoke a contract?
Once the vesting contract is deployed with "Admin right" set on "ON" you may revoke any beneficiary of the contract at any time.
You will need to choose which beneficiary you want to revoke a contract for.
If you want to revoke a contract you will only have to pay for gas fees, so don't forget to have a small amount of Tezos (XTZ).
Step 1: Click "Revoke"
Step 2: Choose which beneficiary you want to revoke and hit "Revoke" again
Step 3: You need to approve the transaction in your wallet