Dynamically update variable instructions

Hi All,

Is there a way to dynamically update catalog variable instructions in a service portal.

I've created a variable set that includes a manager variable, and for 80% of my items it will have the instruction "Line manger of user"

However for the other 20% the text should read "Authorising manager".

I know I could create the variables for each item but I was hoping for a more elegant solution.

Thanks

William