Yes, Z Does Flash!
All you have to do is look at Joe’s Mirrorless in Manhattan and you can see the Z Family does flash (whata spectacular piece!)! I would love to say it’s as easy as plugging the WR-R10 into the socket but it’s not, cause it’s even easier than that! It all comes from making a few changes in the settings and then just shooting.
Make sure that you’re not shooting in Continuous High Extended (my normal mode) as this disengages the flash. Program you Fn1 button for Playback / Preview. Program your i Button (CSf1) so Flash Mode and Flash Compensation are in the menu (see below) and set Flash Control to Radio. With all of this in place, you can take your photo and WITHOUT taking your eye away from the viewfinder, you can depress the Fn1 button and see the flash photo you just took in the viewfinder. Then still with your eye to the viewfinder, if you need to make any adjustments to the flash or ambient light exposure, you can do that right from the viewfinder depressing the i Button. You can do this with NO other Nikon body and it makes shooting flash not only fast and easy but actually fun. All together such little things that bring tremendously big results to our photography. And Joe, tip of the hat to ya, GREAT visual storytelling!!!