The Gallery block allows you to easily add multiple photos and have them automatically arranged in an attractive way.
Get started by clicking the + Inserter icon at the bottom-left corner of the screen and select the Gallery Block from the blocks list
Once you add the block it will look like this:
You can then click on the ADD MEDIA option to add multiple images from either your device or your site’s media library
Once you add the images, you can then click on each of them to either move them around or click on the settings option to edit or remove the image