Because zones are a collection of spaces, you typically create zones after spaces have been placed in the model. However, you could create zones first according to specific environments, then assign spaces to the zones that you created.
Add spaces to the new zone
Spaces and Zones panel
The Edit Zone tab is activated and a new zone is created. The new zone displays in the System Browser but, until spaces are assigned to it, the zone is empty. The default numeric name assigned to the new zone displays in the System Browser.
Properties panel
Properties.
To add multiple spaces to a zone draw a selection box around the spaces being added, or press CTRL while selecting spaces one at-a-time.
In the System Browser, notice that the spaces that you added are moved from the Default zone to the zone that you created.