Can someone tell me how I can have an optional value in a dropdown menu with mandatory values. E.g: There are main values that should be available in a certain dropdown, and there is one optional value that should go to the same dropdown cuz it falls under the same category. the users should be able to use that optional value together with the mandatory values in the field so its a bit challenging.
There is a dropdown named Order Instructions (A,B and C) which itself is optional and below that is another Order instruction (D) which has been provided as a checkbox since it can be enabled together with any order instruction in the drop-down. But I am to add this to the dropdown because it doesn't make any sense to have an order instruction outside of other order instructions. However, I still have to think of a way to have it with the current behavior.