Insert a new vertical tab by right clicking an open tab and selecting 'insert above' or 'insert below'

Many times when I'm using the browser I'll end up with a lot of open tabs.

I often group the open tabs by subject to help me keep track of them.

It would be handy to be able to choose where to put a new tab rather than having to drag it up from the bottom each time.

This is how I'd envision it:

Vlad if I could only have one option, I personally would choose for it to open the new tab below on the left-most level. Then I could drag it inside a group if need be.