TimberSurf wrote:but how do you get the pic with the play button in the middle?
Sorry, been away for New Year . . .
Go to your YouTube channel and select the video. Then click the blue 'Edit video' button. At this point (as I must have selected the new 'beta experience ' sometime) I select 'Creator studio classic' at which point I see a random frame from the video with a play button. Ususally you can pick from 2 other frames if you want. Then I just use the (Windows 10) "Snipping tool" to select the image and save it. Then upload it and publish on the forum as usual.
It does seem to be harder than it should be . . .