When I use the Osmo with chest mount I have to move the gimbal pan by 90 degrees for filming in front of me. Which setting can I do to get this 90 degrees automaticly?

I don't think you can. I found using the gimbal extension lead so only the camera attaches the mount, handle goes in your pocket or pack. It puts the camera into flashlight orientation so you don't have to rotate it, and I also found it held it steadier. The osmo seemed to struggle with being sideways like that.

I ordered the gimbal extension a month ago and still no delivery. This is so boring.