Populate To Do List

Hello Dear All,

Since couple days I’m trying to solve this problem but I just give up, so the question is how to populate particular widget into editor utility widget!

So here what I want to do with plus button:
EUW

This is how it’s look like designer panel:

This is how it’s look like graph:

I’m trying something like that to populate only populate this (vertical box) into task list (vertical box) but it won’t work! I’m not sure is it populate but can’t see because all copies in same place if so how can I move each copy down below (there is no node to use index number to iterate each copy position after add child node?

I researched a lot and only get closer with that topic but this is communicating with other widgets I wanna done everything inside EUW!:

If you guys any idea to share I would be happy for that (If I can solve that I will make a tutorial for everyone on youtube!)
Thanks a lot

Still I can’t figure out how to populate vertical box content, if anyone have a idea please let me know! Thank you