Running test on multiple android devices at the same time

Hello,

I want to run a test on 3 android devices. It works automatically on google chrome.

When I run the parallel test it works on 1 - 2 - 3 devices respectively.

I want it to work on 3 devices at the same time. Is this possible? Can you help on how to do it?

Example: Appium script on multiple android devices. - YouTube