There needs to be a way to insert multiple photos to individual slides on MAC
Just as you can do on a PC, you need to be able to insert multiple photos onto individual slides so you don't have to do this one at a time. On a PC you can just choose a photo album.
Also you need to be able to switch to other photo libraries, not just the main one, to select your slides.
When making a long sideshow on the mac version it only allowers you to enter one side or one photo at a time. This really adds time to the build-up of presentations. It works so well on a pc. When using the album insert