How do I change settings and limits for multiple domains at once
Re-seller limits (bandwidth, email, disk space etc) can be set at the global level for all domains simultaneously from within the Plesk admin system if required.
This can be done by going into your domain admin screen, then tick the checkboxes next to each domain you wish to manage.
Next click the link above the list marked ‘Group Operations’.
From this screen, you will see that you can amend settings for all selected domains simultaneously.
Leave any elements that you are happy with or that need to be set at different amounts as ‘Do not change’
For elements that you wish to synchronise, select ‘Value’ from the Limits drop-down and then enter your desired units.
Scroll to the bottom and click OK.
All limits will then be set to the newly entered values apart from those with the option do not change specified.