Settings > Experiments let you enable and disable experimental features of Chrome DevTools.
To enable an experiment:
- Open Settings.
- In the Experiments tab, search for the experiment you would like to try in the Filter textbox.
- Enable the checkbox next to the experiment.
- Close Settings.
- If required, click Reload DevTools in the prompt at the top.
The next time you open DevTools, the experiment is enabled. To disable an experiment, clear the corresponding checkbox.