Insert multiple images into Powerpoint using Keynote
One of the drawbacks of using Powerpoint on a Mac is that there is no Slide Album that will allow multiple images be inserted into the slide presentation the way you can in the PC version.
However, you can make your own Slide Album in Keynote* by opening a new Keynote file with a white background scheme. Add one slide and then switch to Light Table view. Copy and paste the images you want in Powerpoint onto the Keynote Light Table. Then Export this Keynote file to Powerpoint (File > Export To> Powerpoint...). You have just created a Powerpoint Slide Album.
In Powerpoint, select the slide after which the images are to appear. On the Home tab, click the downward disclosure arrow next to the New Slide icon. Below the various new slide layouts is a list of three actions. Pick the item Reuse Slides.... (Home > New Slide > Reuse Slides...). This will open a window where you can navigate to the the Powerpoint Slide Album that you created in Keynote. Unless you have any further use for the Slide Album, you can Delete it.
*I don't use Keynote because of my longtime familiarity with Powerpoint and because I have never been able to master the Keynote UI during any of my attempts to use it. It's called "Getting things done.'
