Guided Mode Takeoff

Hello All,
Sorry to ask what is probably an old question. I see in MP that there is a takeoff option in the right click menu on the nav screen. I assume it is Guided Mode takeoff. I have been looking for a couple of days trying to find how to use this command but have failed. I am hoping that a right click on takeoff will arm and takeoff to 5m then wait in guided mode for more commands. Can some one point me in the right direction for documentation or describe the functionality?

Running Copter 3.4.5 on a Tarot FY680Pro