How to add extra slide in a crousel [Wordpress]? (POFO Theme)

we are using the POFO theme to create a wordpress site for a creative studio.

There is this carousel in the home page that we like but it is only fixed to 3 slides in the carousel, we would like to add two more any ideas of how to add it? Or maybe ways you have added it in other themes that may serve as a guide to do it in this theme aswell?