Listview - getting started in BP

Thanks for this amazing Tutorial, i’m actually following up this tutorial step by step, and i have a question, how did you managed to make an input to the “Create widget” node, when you specified the “Example Text” and you put the “Create widget” there was an input to “Example Text” as a string, when i did mine there was no inputs for my widget, how to make it like what you did here
https://forums.unrealengine.com/filedata/fetch?id=1595440