Converting Input to Accept Lists

Hello all, I am trying to work with Rhythms Line Weight node (Element.OverrideProjectionLineweight). I have never coded before but I spent the last 4 hours or so trying to figure out how (did not make it very far). Currently this node can accept a list of elements to be changed but it can only take one line weight. I would like to input a list of varying weights. Any one know how to change this from a single input to a list input?

Edit: TypeError: expected int, got list