Customized macros and parameters based on department

Hi,

We have one team that are responsible for emailing customers from three different sites.
We've created different different departments for each site. (Each with it's own support email address.)

So their first step in emailing a customer / creating a ticket is choosing the department.
They then choose the appropriate macro which includes the relevant text for the email.

Is there a way to limit which macros are available for the individual departments? (I know that you can do this by...

Customized macros and parameters based on department