Sorry, in my last post, I made a careless typo: I use *.ctb (sqlite) NOT *.ctd (xml)files. So, I have no problem opening multiple sqlite-based CT files. That was simply the point of my post.
However, your use scenario is different from mine. I don’t often copy stuff from one notebook to another, so I seldom have a need to tile CT windows on-screen, but I can see the potential benefit of tiling windows in your use scenarios. A tabbed interface would be great but I think Giuspen has other more pressing things to do at the moment.
Yerodin, thanks for this suggestion. TidyTabs will not ensure that more than 1 instance of Cherrytree can be opened. Having said that, I have been able to have more than 1 instance open lately on my Windows machine, so am happy.
I downloaded TidyTabs & quite like it. It is worth considering the Pro version.