How to Create Master Table from 2 or more other tables

I want to create a master table with the rows from multiple other tables added to it. The data moving in would be of the same columns and then my master table will have more columns that calculate things based on those for the Layouts.

I’m not sure how to do this. A Relation assumes there’s something to match, but I just need a sync/copy over. A query pulls at the items into a single cell, but I want the entire row copied into an entire row. How can this be done?

You can use an Add Row action.