UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.170 Safari/537.36

Steps to reproduce the problem:
Currently, if my chrome was closed and I want to reopen,  I could go to history -> recently closed -> open recent closed tabs.

What is the expected behavior?
As a user, I would like to group my tabs so that I could easily reopen this group(tabs) in new chrome window next time. For example, I have 2 chrome windows open. First chrome currently shows all my personal tabs (email, youtube, etc), second chrome window shows my business tabs (company emails, documentations, wiki etc). In the weekend, I might close my company chrome window, but it would be hard for me to find/reopen those tabs again on Monday since my history stack is too long.

What went wrong?
Nothing wrong. Just new feature request.

Did this work before? N/A 

Chrome version: 66.0.3359.170  Channel: n/a
OS Version: OS X 10.13.3
Flash Version: