Image Uploading can be done in Storage Manager. In the Storage Manager, File Manager is responsible for the image uploading.
You can upload images by drag-droping to the File Manager. Also clicking to the File Manager area, image loading screen will pop and you can select images from your operating system. You can select multiple images to the File Manager. It will upload images simultaniously.
As default, image names will be changed to a randomly given unique name. You can preserve the image name by checking the "use original filename" checkbox.
Uploaded images are shown in the below where you can see their CDN links of the images. Images that are uploaded can be reachable right after you uploaded them via their CDN links. You can learn more about CDN links and how to use them in this article.