Checking the Preview
You can view the desired output from the player or just by clicking on the
from the editor.
The output will demonstrates how a multi-zone layout plays for 10000 ms and then switches to single zone layout that has playback duration of 3000 ms and then switches back to the multi-zone layout.
You can customize your channel transition (from multi-zone to single-zone layout or vice-versa), as per your requirements.