Go to Setup, Awards.
Click on the applicable Award.
Click on Payments, Super.
Scroll down to Payment Conditions.
All pay components are grouped under Payment Conditions: if there is a tick in the box super is being calculated, if a box is unticked and you are wanting to pay super on a particular component tick the box.
Note: If it is Company decision to pay super on a particular component, this will need to be repeated in all Awards.