Dual Screen - How to?

My KMC Universal Studio designer has an option for “Dual Screen”. I’d like to play two videos side by side in one player. I can’t locate any documentation on how to make this happen.

Is this a restricted feature?

You can upload two video with xml and make sure reference id is the same. Then second video become child video of the first one.

Once the both video are uploaded, you can watch two video with dual screen player.