I see a bunch of videos of people placing their DJI OM gimbals on the end of jibs and monopods and selfie sticks to take those "cinematic" shots.  They appear to change the position of the camera on the gimbal like the attached photos.  In a DJI OM YouTube video, this mode is described as "Flashlight" mode: https://youtu.be/7dCkUXDxSyg?t=27  
However, I can not find a tutorial on how to acheive this mode.  What I have tried:

Selecting "Tilt locked" mode and lowering gimbal into that position
Pressing gimbal trigger and holding it while I lower gimbal into that position then release trigger (in Follow or FPV mode)

Invariably, the result I get is that the gimbal wants to stay focused on the ground, even when I lift it up.

How do I get it into that "flashlight" or "low" or "underslung" position and lock it there so that I can take a shot sweeping up from that position, like this: https://youtu.be/xUPfQueUYps?t=100

The above is exactly what I want to do,  slowly lifting gimbal up in this position, but the gimbal will stay pointing at the ground.  Can someone take me step by step how to acheive this shot with DJI OM 4 gimbal?

Thanks!
Flashlight Mode
Jib Shot

I think the Osmo 2 was the last version to support this.