UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3426.1 Safari/537.36

Steps to reproduce the problem:
Hello is it possible to add and create a "GoogleBot" to the Emulated Device testing section? 

The reason this would be so useful is to allow users to be able to fully test the rendering of their webpage, be able to see how it reacts to GoogleBot and to make sure their important content is in the primary window area.

I believe there are three main requirements which I will list below:

1. Google's John Mueller has said GoogleBot can read a max-height of 9000px source: https://twitter.com/JohnMu/status/925725960288309249

2. Google now crawls and renders using a 'Mobile First Index' therefore the user-agent would be:

Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.96 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)

source: https://support.google.com/webmasters/answer/1061943?hl=en

The important bit is the "Nexus 5X" which has a width of 412px, so this gives us the dimensions of:

"Width 412px by Height 9000px which gets rendered by GoogleBot"

3. Another important thing is that GoogleBot uses Chrome/41.0.2272.96 to crawl and render web pages - see above user-agent information.

According to Googler's at I/O 2018 the following issues are created:

"What's not immediately clear from the user agents is that Googlebot is currently using a somewhat older browser to render pages. It uses Chrome 41 which was released in 2015. The most visible implication for developers is that newer JavaScript versions and coding conventions like arrow functions aren't supported by Googlebot. And with that, also an API that was added after Chrome 41 currently isn't supported." source: https://www.youtube.com/watch?v=PFwUbgvpdaQ

Therefore the main issue is that I can create a custom emulated device with the dimensions of 412px x 9000px - BUT I can not simulate testing under Chrome 41 at the same time.

What is the expected behavior?
Can we have a Special feature that allows us to test web pages in the maximum size of 412px width by 9000px height in a Chrome V41 environment when using newer versions of Google Chrome/Canary?

What went wrong?
Feature Request to test web pages are behaving correctly with GoogleBot. Currently, there is no way to test this important information!

Did this work before? N/A 

Chrome version: 68.0.3426.1  Channel: n/a
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: