Export Selected Items/ Naming Scheme: Free Text Field?

How to enter “Free Text” in the Naming Scheme Window of the Export Selected Items dialogue?

It seems like there is a field missing where one should enter “Free Text”?
Or am I overlooking something?

Niek/ Amsterdam

Once you drag the Free text tab onto the Result line you have to double-click on it to enter some text.

I clicked everywhere I expected I had to click, on the pencil icon for example, but eventually, when I clicked on the words “Free Text” themselves, it worked!