There is a plug-in that allows you to create a slideshow in directly in the eportfolio.

Go to Plugins from the left-hand menu. Search (command + F) “slideshow” to find the Slideshow plugin. Activate.

Then, to create a slideshow on a page or in a post, simply click +New > Slideshow from the top menu. Or, click Slideshows > New from the menu on the left side. If you have used powerpoint or google slides before, then creating the slideshow is fairly intuitive. Save it.

Then, to embed your slideshow in a post, click Insert Slideshow (next to Add Media) just under the post title/permalink. Voila!