Replying to New Anthems

Hey guys
I just picked up some line anthem octolands and im pretty new to the park scene
What am I supposed to do in terms of like detuning and stuff?
I've already waxed the skis, but I dont really understand the tuning process.
am i supposed to file down like the first 10 cm from each of the tips?

if somebody could guide me through the process of how to tune up a new ski it would be greatly appreciated...
I checked the search bar but i still dont get it..im confused on what to do