How can I move the autofocus point on this camera using the arrow keys? Up to now I have managed to move 9 AF fields together. However, I would now like to be able to do this with only one.

I bought the camera and I'm a huge fan, but I'm still struggling with the video recordings. Unfortunately, the video length is limited to 4 seconds. I haven't found any information on where I can change the length of the recordings. What is the reason? is it really impossible to set it longer? is my SD card too weak? Please help!

Can you charge this camera with a powerbank (5V, 2A output) and take photos/ videos at the same time?

Can I buy an adapter from 2.5mm (camera input) to 3.5mm to use a common microphone like the Rode Video Mic Pro? I can't really find any confirmation of this anywhere.