If you have purchased a Ford Performance Coyote Control Pack for a 2015-17 Gen 2 engine with 6R80 Automatic transmission then Select Shift is not an option direct from Ford Performance. It can be added to the harness but the pins are not supplied to do so. We have sourced the pins needed to be added and drawn up instructions for how to wire them up for a few different applications. There is not tuning needed to complete this. Simply find the Body Harness connector on the PCM, remove the connector lock, insert pins as shown in the diagram, and wire to switch of your choice.