Portfolio extension

hello beautiful theme

I installed the portfolio extension but I can not add images to my projects. I do not understand the term “featured image”

and there’s nothing on here in the tutorial
thank you

Hello, hope this link could help you http://www.wpbeginner.com/beginners-guide/how-to-add-featured-image-or-post-thumbnails-in-wordpress/

thanks a lot, i undestand a little bit more but in moesia example there are many pictures on a single project.
If i read your link it’s only for 1 picture.
If i try this is it good or is there another method ? http://www.wpbeginner.com/plugins/how-to-add-multiple-post-thumbnails-featured-images-in-wordpress/

You can try to add those custom code, but make sure that you modify the related files in the child theme.

or you can try a simple ways to enable add multiple featured images by using wordpress plugin.