Allow Enter of Emails for Mass Mail
Be able to copy/paste or enter manual list of mails to send a Mass E-mail to or mass open of tickets.
Add another field in the mass mail tool for manual entry or adapt current list to be opened/amended.
Platform uses one master and WHMCS has no idea of slave/locations of services, select services need maintenance notice sends so current method would be outside of WHMCS or via manual sending 1 by 1. However mails could be pulled from platform direct and copy/pasted in saving admin time.