That would be great :) 

I think you'll also need a slight change in behaviour, i.e. if the drop down is chosen (rather then than the sidebar) AND hover preview is chosen then the 'new' option for the drop-down to stay open when clicking tabs needs to be forced on (and greyed out to prevent it being turned off). Otherwise, as above, the drop-down will simply do it's disappearing trick as the pop-up currently does. I'll happily test out a 'Beta' if you like - just let me know. Thanks.

Brilliant. Any chance of fast tracking it? :) I'd really love to have Sidewise working for me. Getting snowed under with tabs - just the way I seem to work!!

Is it possible then to have a 'drop down' from the tool-bar icon rather than a pop-up? That would surely be a way of avoiding the issue and there are other extensions that work like this - Neater Bookmark has an option, for example, 'Pop-up stays open when opening (left clicking) bookmarks'. I can imagine Sidewise working this way. what do you think?

Keeping it in focus is the only usable method for me - but you do realise that 'not' keeping it in focus makes the hover preview completely useless? If you have that option ticked, the pop-up vanishes as soon as you move the mouse over it. This is really something that needs fixing - would be massively useful (essential in my view) if you could do it. Maybe the answer is to automatically force keeping the pop-up in focus if un-docked AND hover preview are selected.

Pretty please - can you do something about this? I simply want an option to keep the undocked window 'on top'. Currently Sidewise is unusable (for me) until this is possible. Is this something you can fix?

Thanks.

Apologies - I've found the option that does that!