Remove duplicates from a populated listview of names

Nor have I found another one, but I don't know how to call it in my app, could you add the missing blocks' Please.

I knew I had to use the procedure name but it doesn't appear in the components.
Also in this one you posted to me I don't know where to go to insert the block to call it.
If it were possible that all duplicates together could be eliminated it would be optimal instead of one at a time with the button.


Duplicate (1).aia (2.4 KB)

Sorry I was wrong to send the '.aia this is the one to correct, I do not know how to call the procedure