Enhancing Table Mapping Efficiency for Power Users

Write to other table recommendation: It can take a while, is tedious, and not visually efficient to map the source table fields to the target table fields with a drop down. It would be excellent to have a list of all possible source fields on the left, and the ability to map to the target table on the right (with drop down for the target fields). I feel like this would save a lot of time for the power users. Thank you for reading!