Unfortunately, Chromecast isn't powerful enough to support zone layout feature. If you're looking to upgrade your device that supports zone layout, we recommend a Chromebit, chromebox, Amazon Fire TV box or Fire TV stick.
There are other benefits in upgrading to these devices. The main ones are;
- More locked down so no one can take them over
- Have auto restart capabilities if the device is powered down and on again
- Are more powerful so can handle more complex animations
- Have more storage so more content can be saved offline (better playback)