How about using a pre-made profile? If you want you can use mine, please find it on the second post in this thread.
Several people are using it and gave me a positive feedback, so I hope you’ll find it easy to enjoy it.
By the way, locking a target is achieved with TMS up, in my profile it’s bound to button n. 5 (top one of the three in a row series on the side of the throttle).
Hope this helps, let me know should you need help with it. 😉