Log in and navigate to your desired project
You'll notice a dashed line box surrounding an + Add Drawing button
Simply select all the files from your computer you'd like to upload then drag and drop them into the dashed boxed area. You'll see a red number next to your cursor matching the quantity of files about to upload before you release the click of your mouse.
If uploading 5 or more files please allow several minutes for them to upload properly.
*NOTE* We do not currently have a bulk delete so be careful before uploading several files to the same project