Yes uStudio supports batch uploading multiple videos at the same time. Here's how:
Let's say you have a dozen videos you want to upload, and you'd rather not do them one at a time. That would take a while.
What you want to do is still click the "+" button you would normally click to upload one video, but when you see the "Upload Video" pop-up window, open another window that contains the videos you want to upload. Select multiple items, then drag and drop them into the "Upload Video" pop-up. It'll look something like this:
Now if the number of videos you want to upload is VERY large, you might be better served with an FTP method, or even an API method. Either way, we've got you covered; just ask firstname.lastname@example.org.
Note: uploading 3 videos at a time is optimal, though you may increase the number of videos uploading if they are a small size (50MB or lower.)