Just tried keep sidebar visible – it works when I restore/unhide chrome from the dock. When I hide chrome it does not hide the sidewise bar I have to hide both. But at least they both pop back up when I click on chrome. That's a good start.

Thank you.

Hmmm, just figured out if I select undocked from the tools menu, it opens and closes just fine and remembers its location.

The only problem with that is that I'm constantly hiding and bringing back two pages: Chrome and Sidewise - double the work. 

Is there any way to keep the two connected so that I can hide and bring them back both of the same time?