Adding third document viewer on MultiViewerMode

Hi, I t is possible to add a third document viewer when the UI.Feature.MultiViewerMode feature is enable? currently by default if you want to realize a comparison and enable UI.Feature.MultiViewerMode if you call Core.getDocumentViewers() you will get an array of 2. My question is: It is possible to add a third one so I can load another document?
I am referring to the feature mention on this page of the documentation Apryse Documentation | Documentation
Thanks in advance.

Hello,

Currently, what you are asking for is not supported out of the box, but you can try to make it work with your own custom UI:

Let me know if this helps!