How to manually set focus to infinity?

[Grimbart55]

Tried some evening/night flights but could not focus on infinity by tapping the screen. Obviously there was not enough light for the autofocus to work. There was enough light for taking city lights photos, but they came out quite blurred due to incorrect focus setting. Is there a manual way to explicitly set the focus of the camera?

 

[Kilrah]

No.
There's a manual focus bar, but nothing to know where's what to help set it.

Make several AF attempts at different things.