What exactly are you having trouble with ?
On page 12 of the manual is the plane's programming instructions for the DX6.
Here is a video on the sport cub but it is almost the same as the corsair.
https://www.youtube.com/watch?v=fjJlXuC2yaM
<a href="https://www.youtube.com/watch?v=fjJlXuC2yaM" target="_blank">
https://www.youtube.com/watch?v=fjJlXuC2yaM