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Letting Users Create a new list, and then enable them to choose between different lists they have created

Hello guys, Im relatevely new to bubble.
I need to create an app that will allow users to create a new list of things to-do, and the user will also be able to choose between any of the lists he’s created previously and edit them. I tried creating a custome event that would “create a new thing” but i dont seem to know how to populate the new list for the user to modify and edit (i was previously using Repeating Groups)