Async checkbox on Google Chrome dev tools missing

Can't find this checkbox in new versions of Chrome. Can anyone give a hint where it's gone?

async checkbox

How do I debug async in Chrome?

# Enable async debugging in ChromeGo to the Sources panel of Chrome Canary DevTools. Next to the Call Stack panel on the right hand side, there is a new checkbox for "Async". Toggle the checkbox to turn async debugging on or off.

How do I enable F12 Developer tools in Chrome?

To open the developer console in Google Chrome, open the Chrome Menu in the upper-right-hand corner of the browser window and select More Tools > Developer Tools. You can also use Option + ⌘ + J (on macOS), or Shift + CTRL + J (on Windows/Linux).

Where are snippets in Chrome DevTools?

Snippets can be easily accessed through Chrome Developer Tools (on a Mac you can open Developer Tools through Command + Option + J). In Dev Tools, navigate to Sources → Snippet → New Snippet.

It's been removed and async stack traces are on by default now. Source: https://developers.google.com/web/updates/2017/05/devtools-release-notes#async-stacks