Display in Interface

[udayan]

I extract some data using drop down tool and now I want to show a value calculated using the extracted data in the interface & also in the same same workflow. I will be highly obliged if someone give me the solution & if the solution is already given kindly provide me the link.

[ped2br]

The settings cog on my Interface Designer is grayed out so I'm not able to make the selections described in this solution.  How can I get that option activated?

Thank you