Trying to populate ListBox from a Collection of records not working-displays 1 item containing text

[JamesM]

If I manually add the following to the items value of my ListBox 

["value","value2","value3"]

I get

value

value2

value3

But if you look at the screenshot below, I am getting back the string ["value","value2","value3"] from Microsoft Flow, adding that to a Collection and trying to use that with my LisTBox, but it creates a single item with the text of the string. 

I'm guessing I need to do some kind of split operation? but i'm not sure how - anyone?

[JamesM · Accepted solution]

Never mind, found it - just needed to Split within the Items property, e.g. 

Split(Text(First(customGroups).Value),",")