Macro Email to be determined by a ticket field

Macro Email to be determined by a ticket field

Hi, we are a commercial energy brokerage and are implementing Desk as our helpdesk tool to replace manual emails, personal whataspp and telephone. 

We have setup a macro rule when we can trigger an email, update ticket status and trigger a task.... but

is there a way to trigger the email to go to a diffrent email address dependent on one of the fields in the ticket - as completed by the customer. (ive attached screenshot from the ticket screen and the workflow email trigger screen)

for example:

custom field   - email address
ABC                   customerservice @abc.com
XYZ                  custservice @xyz.com
DEF                  cservice @ def.com

OR would we create a seperate macro per email address.