AMH A409U v2 Crosshair

I recently got my AMH A409U v2 and I love it, except for the built in speakers but that was expected (have a Roku 4 hooked up). I recently sat on the remote by mistake and boom the crosshairs showed up on the screen! I dont know how i did it but does anyone know how to turn the crosshairs on via the remote?
how do i turn the crosshairs on with out the remote?
My friend purchased the a399u per my suggestion and loves it. he was wondering if there is a crosshair option on the A399u too?
Thanks, hope you all had a happy holiday!

UPDATE: Ok so I was fiddling around with my monitor just now and I figured out how to get the crosshairs to show up using the remote!
When there are NO osd menus up, all you have to do is hit the down arrow on the remote and you can cycle through 6 different crosshairs 3 yellow then 3 red!

Cool! :D I appreciate the heads up.

Yep, the up arrow will also cycle through the zoom modes, as if your thumb couldn't reach the zoom button 1cm away.

How is it for gaming. Is the response time and input lag too bad. Or is the monitor usable for gaming.