How to edit signatories/threshold of your Flexible Multisig
Changing signatories or the threshold for a Flexible Multisig does not change the account address.
Open the Wallet tab.
Navigate to your Flexible Multisig in the list, and then select the 3 horizontal dots to the right of its name.
SelectChangesignatories.
You can now modify the flexible multisig by deleting the existing signatories, adding new signatories, or changing the threshold required for operations to be approved.
SelectContinue and then signthetransaction.
Once your existing fellow signatories sign the transaction, your Flexible Multisig will be updated.