I was just looking for the multiple windows option. It would be really useful if I could open two notebooks in two separate windows.
I use outline for drafting articles, and I keep notes on literature in a separate notebook (works great for sorting and categorising my bibliography). Would be so useful if I could have my literature notes open at the same time as my actual draft.
I agree the absence of multiple window views is a serious limitation.
I could see either opening multiple top-level app windows, or having only one app window and instead being able to open separate windows for individual pages (like Apple Notes). I probably prefer the first case.
I'll join in too! I've got 3 monitors on my development machine, a 27" Apple LED (2560 x 1440 pixels) on the left, a true 4k (4096 x 2160 pixels) in the middle and an Apple 30" Cinema display (2560 x 1440 pixels) on the right. So I like to put multiple windows up for various purposes.
I'd like to keep a general notes window on the left and a coding snippets and OS X documentation pointers on the right.
I also vote for this feature and need it badly. There are many instances where having multiple windows open is necessary. Just one example is I have taken notes in a customer meeting and now reviewing those notes with my team.
In this example, I want to take notes in my team meeting, and I also need to have a window open with my customer notes I can review with the team.
Please allow an arbitrary # of windows to be open. I was a long-time user of Circus Ponies Notebook and this was a VERY useful feature.
We should be able to right-mouse on any Notebook, Section Group or Section and open it in a new Window!