UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3270.0 Safari/537.36

Steps to reproduce the problem:
"Empty cache and hard reload" is the most useful shortcut, because it does the most work to ensure that you are experiencing the page load as a first-time visitor.

What is the expected behavior?

What went wrong?
There is no shortcut. There is only a shortcut for a normal reload and a hard reload.

Did this work before? No 

Chrome version: 64.0.3270.0  Channel: canary
OS Version: OS X 10.12.6
Flash Version: 

Existing shortcuts:

Normal reload: F5 (Win/Linux), Cmd+R (Mac)
Hard reload: Shift+F5 (Win/Linux), Cmd+Shift+R (Mac)

Possible shortcuts for "empty cache and hard reload":

Ctr+Shift+F5 seems like a natural shortcut for Windows and Linux. Mac is less ideal, I suppose Cmd+Ctrl+Shift+R will do.

Source of request: https://groups.google.com/d/msg/google-chrome-developer-tools/ugKgjKf92hs/nLruLc4aAgAJ