You can access the media library from the tab Settings. The same Manage Media view will open when you add/select image/icon to the section.
From the upload button at the top, you can add an image from your computer. You can delete the image you added by selecting it and clicking the trash can icon at the top. In addition to the images downloaded from your computer, the tab also displays stock photo images that you have added to your site.
There is an integrated collection of Unsplash stock photos in Oidom. Via this tab, you can find and add images that have been given for free use. You may want to add a mention of the author on your content. Author information can be found by clicking the image.
In certain sections, you can also use icons, which are added to the media library. You can choose the size and the color of the icon you want to add.
From My files you find all the files that are uploaded to your site.