Can we rotate Gimbal camera to landscape to portrait in DJI Osmo 6?
if yes then please give me some example or method name.

Hello, there. Thank you for reaching out. To switch between portrait and landscape on the DJI OM 6, you may follow the instructions below.

1. Power on Osmo Mobile 6 and press the composition button twice to switch between the two orientations. (Recommended)

2. You can also switch between portrait and landscape by rotating the gimbal (roll axis) manually.  (Note: Please make sure to operate with care to prevent the mobile phone from being damaged).

I hope this information helps. Thank you for your support.