Fibonacci input value

[peringvar]

Hi I wonder how to select the fibonacci levels as an EA input. I have tried to add a constant and a variable input with no sucess.
I wonder also if its possible to acces those levels afterwards in the EA?

[miro1360]

it is string type, so maybe as this:

[peringvar]

Thank you so much. I added the missing word string as an constant and then it worked. Im quite new to fxdreema so this is great.