While you're in that documentation, look to the left and scroll down until you see all the features underneath the expanded folders. You will be currently in RadUpload > Features > Upload service Parameters. Take a look at all the other features this control offers you.
Let me know if you need more help than that. If yes, provide me with some more detail on what you are trying to achieve and your project code. I'll help write you a solution to your needs.
Thats great! I'm glad you got the results you were looking for!
If you would kindly mark the post as "Answer" so that other people may find an answer to a similar problem they're having. Doing so allows others to see that you did find a solution to your question.
Thank you and good luck with your project,
Lancelot