When we try to configure E501S and E500 in the same AP group it fails because we are not allowed to set the same TX power on the devices.
E500 has 5 dBi antenna gain on 2.4GHz radio, and E501S has 11 dBi antenna gain if i read correctly, and cnMaestro don't allow this to be adjusted by the cnMaestro administrator.
A thought would be to not have the antenna gain option on devices that don't support adjusting it. Ex. total EIRP for devices and not TX power + antenna gain.