[Feature Request] operate on accounts within AWS organziations

It would be very beneficial to execute commands on all account within an organization or maybe within an ou using a defined role while using assume-role for the target account.

Start by reviewing how the shell executes AWS CLI commands and how assume-role is handled. Investigate AWS Organizations accounts, organizational units, and the defined target role, then clarify the command interface and account-selection behavior before implementation. Done means commands can run across all accounts in an organization or OU using the target role.

Written by the indexing model from the issue text.