You can use this expand button in the variable form so that the "Value" field becomes a multiline textbox. This way you can just put the next string on a new line. A "Send Value" action will send this variable with the newlines included.

If you need to create the variable using a "Create Variable" action, that form also allows you to expand the textbox.

Dear Kyle, 

Thank you for your answer and hint 🙂

I wanted to get the below result:

And unfortunately, I couldn't find the solution this case and having the below result 😞

Thank you in advance and have a nice day

Regards, 
Anuka
 

I assume you are trying to build this list. 

You will need to use the "Join" formula to build your list. Create a variable called "NewLine" that is just a newline character (in Notepad hit the enter button then copy the text and paste into the variable form). Then you can use the join formula like this: 

[?Join([%Beer_Names],[%Newline],"Hopsecutioner")]