Please, oh please provide an option to change the default for whether the viewing pane on the right (e.g., as in Comments or Edit PDF) is open or closed.

In the current version of Adobe Pro DC the default is to, e.g., show the Comments in a window on the right. It makes the pdf shrink in size on my screen ... and when I"m the first one making comments, there ARE NO comments to view... If the default were to have this window open ONLY WHEN there are already existing comments, that would be super cool.

Otherwise, this is just one more click/task I have to do in order to review my 100s of pdf documents ...

Thank you!!