If your permissions allow, you can manage other administrators. You will find account administrators in Settings.
- Click Settings
- Click 'Account Administrators'
- Right click on the administrator email to be copied
- Select 'copy'
- In the popup, click 1 or more listed accounts
- Click 'Ok' to complete to copy action
Additionally, you can open the account administrator record > click on the 'Accounts' tab > and select other accounts > move them over > click 'Save'.