I know we can dock windows by double clicking while pressing Ctrl key. My question is if we would like to dock two windows, say Navigator and Styles, can they be navigated using tabs? Currently I am only able to add them below to each other.
It sounds like you are talking about the new Sidebar, which combines the functionality of several panes. Once you have the sidebar visible the other panes can be closed. Refer this answer.
Yes this was exacly what I was looking for. Thank you.