How I comping on Cubase 9?

Hey. I’m Thor Oach. I’m new here.
I have a problem with Cubase 9: I don’t know how to comp vocals.
I have three takes of vocal audio and I want to edit them, but I don’t know how.
I don’t know how to do this. I’ve tried anything. It’s definitely impossible to comp.

Howdy Thor!

How to Perform Advanced Audio Recording in Cubase | Getting Started with Cubase Pro 8 - YouTube (Starting at 13:15)