Help with Photos 7.0

Sorry - I thought you were referring to the filename of the image. As far as I know, Photos has never displayed an image number. Perhaps you were using iPhoto when this was available.

What you do get top left of the thumbnails is an idication of the date range of the thumbnails shown on screen.

I'm not sure what you want, exactly. When I see a picture in Photos

it has the title and stuff at the top. In addition, I can open the Info window, ⌘I, and get the file name and the title from that. Is there something else are you thinking of? Or do you not see this?

You can't get a list of albums that a photo is in. I use the keyword feature to add the album name as a keyword-- just open the album, select all, and paste in the album name. Sometimes pictures will be in more than one album, and that will show up in the keywords.

Also you can use a smart folder to find all the pictures that are not in an album. You choose Album--is not--any.

Are your photos showing in square format?

Try hitting this button top left of the pane.

Great! I admit that I saw the "not any" suggestion the other day from Yer_Man, so thanks to him!