It’s called team mode and it can be confusing first time. Bottom line is your main ST becomes camera control and the second controller becomes pilot with camera view. Both controllers can start/stop record or take pictures. You can make the joy sticks run tilt and pan by flipping the tilt mode switch down to position 3 or get the right stick for pan and left slider for tilt in position 2 (many people think that position does nothing but here it does) which I’ve found is better for some operators.
I had to read the instructions several times as the translation is lacking and it took a few tries indoors to figure out so I was capable in the field.