RF Template – this is optional – settings can be taken from the organizational template or manually configured.
Site Groups – this adds the site you are creating to one or more groups. Remember the config templates may have been tied to site groups so add this site to a group could enable WLANs and other policies
Please note: If you override channel settings at the AP level, it is recommended to also override the power level. Or else the AP will use maximum power (or the static power configured in the RF template/device profile).