On the bottom right of the screen tap the key icon.
Tap VaultKeys.
You will see a list of all of your active & inactive VaultKeys.
Tap the VaultKey you would like to enable or disable.
Toggle your VaultKey Status on or off to enable or disable that VaultKey.
When the toggle is green, that VaultKey is active.
When the toggle is grey, that VaultKey is inactive.
If you had any scheduled payments or direct deposits attached to that VaultKey, they will not process while it is turned off/inactive.
You will need to toggle it back on or create a new VaultKey to resume payments/deposits with that Vault.