I would like to know if it is possible to add a feature that enables me to send an email to, a group of, or all support rep's, regardless of the business unit. 

For example, Add an "E-mail" button in "Global Setting --> Support Reps". When I click the button, a screen pop's up that lets me send an email to all selected support reps.

I would like to use the feature to send emails about maintenance schedules of the server, up coming updates, changes in SCP, etc.   

Best regards,

Allistair