I would like to add an extra field to my incident template for Priority Description - as per the defined Priorities - under Admin --> Priority. I've added Priority - which is a drop down listing and I'd like to add Priority description  based on the priority which has been selected.

Tried to use form rules but cannot see how to add this. Even the form rules are not helping too.

Any idea on how I can go about this will be appreciated.

Regards,

Davis Onsakia