In order to fill up your system more quickly with images, you can upload image assets directly to Projects.
Firstly, use the search filters to find the Project you are looking to upload assets to. You can also identify empty Projects or Projects with few files.
When you have created a selection of Projects that you wish to upload images to, select the Project to navigate to the Project Page. From this page, select the upload icon in the top right corner of the page.
This will take you through to the file uploader, where you can follow the usual steps to upload your files.