I'm not sure I'm fully following what it is you're looking to do. For mapping one value to another you can use the "Set" action, which I see you've done via your screenshot.
I also see you are using multiple embedded pagelists. If you need to set values to the elements in the embedded pageslists, you can loop through them and use the <current> keyword to set the values to each element. The below article has some details on this: