You can also upload your files via agent. To do this you have to add new agent to the cluster (if you don't have it yet).
Open agent directory on your node. By default agent expects files to be imported in folder
Place your files here.
Go to Import page and select "Import from agent node" option.
Choose a name for your future project and select the node that stores your files. Don't forget to choose the correct "Import preset".
Click "Import from node" to start import.
You will be moved to the "Task status" page. It has a progress bar. A new project will be added after the import process is finished. No images are being uploaded, only meta information.