Hello Yes you can, it's very simple. The format can be defined in the Settings screen. Just tried it out. 😀

Hello,

Yes, in the Settings screen, you can define the format.

Sony Support EN

Yes is possible

And in general devices of these kind recognize the kind of monitor that is attached to them and send the appropriate signal, the same way a computer is capable of many different resolutions but settles for the best one the monitor is capable of.

Yes, this setting is possible. I have also just tried it out.