How to switch to "Land" mode for PX4?

I’d like to switch to “Land” mode for PX4, but do not have the mode in the list in QGC.
I have v4.4.3
What would be a good way to switch to “Land” mode?

i don’t think such thing exist there. On the left panel, there is Takeoff. so once you takeoff, Land should appear there.
on other hand, when you want to fly autonomous and make a flight plan you can select land and takeoff.