Q: bursts in photos

One more feature of this:

If you only select one or two from the burst, Photos will ask if you want to keep the remaining or not, so you may choose at this point to delete them or not.

It also seems to me that Photos initially selects the best quality photo in the group when displaying the Make a Selection screen.

Actually this is a very cool feature, giving you the opportunity to make your selections on the larger screen.

Thanks!  I've pretty much stopped using the help feature oh my Macbook Pro.  This community is much more helpful!

I noticed that when keeping only 1 frame from a burst, the others were hidden and not deleted yet.

Result : when exporting the 1 picture, all the "removed" pictures of the "original" burst were exported (though it was showing as only 1 frame and not as a burst any more), which was not my goal.

But, when opening in Photos the folder "recently removed" I found the remaining frames of the burst, so,

I deleted "permanently" in "recently removed" the other frames and then tried to export the remaining frame again ...

It worked : only 1 frame was exported.

use the Make selection button upper left corner, click through the bursts, check the circle in lower right corner, Done. Then use jeffreyfrombelton's suggestion