Decision Table

I saw that there is a provision for getting multiple values (array) as output from a decision objects. But, how to configure that?

Eg. In my decision If I want List of 4 text strings {A,B,C,D} for Input Integer 1, but when I configure output with comma separated values A,B,C,D It is returning a single string "A,B,C,D". Please see screenshot below:

Can someone help? Is there any way to achieve this? Or is making hit policy as Rule first the only way possible to get a proper list output from decision?

NB: I DON"T WANT MULTIPLE OUTPUT> I WANT SINGLE OUTPUT AS AN ARRAY!!!