Q: Slideshow photo titles

I have same complaint. It appears that I must enter a caption on every slide picture that matches the field to display the same information. Not happy that Apple designers take away features of iPhoto to downgrade to what is on iPhones and iPads.

Unfortunately you are right. It is no longer possible to add titles to a slideshow.

You may want to send feedback to Apple with a feature request. The feedback form for Photos is here.

Apple - Photos - Feedback

If you still have iPhoto or Aperture installed, use these applications to present your slideshows for the time being.

I have same complaint. It appears that I must enter a caption on every slide picture that matches the field to display the same information.

Yes, the batch changing options from iPhoto are not supported in Photos.

As a work around, you could try to use Apple Scripts to batch change the titles and captions.  We started a collection of Applescripts on the User Tips page, have a look:   Photos for Mac

	Photos for Mac: Batch Change the Descriptions		Show 2 Bookmarks2	0	173	May 6, 2015 9:44 AM by léonie	Actions
	Photos for Mac: Batch Changing the Titles to the Filename		Show 2 Bookmarks2	7	326	May 5, 2015 1:15 PM by léonie	Actions
	Photos for Mac: Batch Change Title to Capture Date-Description-Padded Sequential Number		Show 1 Bookmark1	0	54	May 2, 2015 8:46 PM by Old Toad	Actions
	Batch Changes in Photos for Mac:  Change the titles to a Given String		Show 1 Bookmark1	3	269	May 2, 2015 7:23 PM by léonie	Actions
	Photos for Mac: Batch Changing the Title to the Capture Date		Show 1 Bookmark1	0	59	April 28, 2015 10:50 PM by léonie	Actions
	Photos for Mac: Batch Change the Date and Time to a Fixed Date		Show 1 Bookmark1	0	118	April 21, 2015 10:18 AM by léonie	Actions
	Official Apple Feedback link for Photos

You have to manually add the title of each photo to the slide in the slideshow:

Select the slice at the bottom of the slideshow window and click on the + button at the right and select Add Text;

We have to do that for each photo/slide.  Be sure to tell Apple what missing features you'd like restored in Photos via https://www.apple.com/feedback/photos.html

That is great, OT!  I missed that option, because, when I first tried it, the "Add Text" was always greyed out. But that is only for the first slide. Good to know, that there is at least an option.  Only, it is a pity, that the captions from the slides cannot be used.

Thanks, that helped! (But the entire process is bulky, non user-friendly, and not what an Apple product should be like.)