Is there a one click solution to display the sidebar?
Right now, it's necessary to click Opera ... Extensions ... Sidebar.
I'm looking for a button that will open the sidebar (and possibly close it).
I've already checked the extensions.
Open as in, open one specific sidebar (say, bookmarks)?
There is a setting to keep the selector open all the time, if you do that then clicking the icon for a particular extension will show/hide that extension. Oh, sorry, that setting isn't in 34 yet (I generally use the latest unstable Developer build)
Well, at least you know they are working on it then.