Yes! We highly recommend that you use SFTP to transfer your project’s main audio-visual files. It is safe and allows you to upload large files as well as files in bulk (e.g. if you’re uploading more than one film/project). Also, if your connection breaks or you have to stop uploading at any point, it will simply resume again once you re-connect, with no need to start the process over again.
The in-browser file uploading system is good for smaller uploads (e.g. adding a subtitle file later on) but is not 100% perfect for larger files.
For now, images (e.g. movie posters and stills) cannot be uploaded by SFTP, you have to use the in-browser uploading tool.