Hi Douglas,
Are you aware of the Service Schedule feature, per WLAN under the Advanced Options?
You can specify only business hours to service clients, even on all your WLANs, might be
a better option than manual AP power cycles. See the Week/Day/Hour chart that opens up
when you change the setting from Always On, to Specific. Configuring this on your ZD to
all your APs is perhaps a different option. But, nonetheless, power cycles do not hurt APs
if the building/business owners turn off the power at night.