in ver 2.264 I could create multiple wifi connections and disable them when needed in the advance config of luci. with no anomilies
now in the lede 2.7 version. If i create a second client config it will rename a master config with the same wifi name. it actually goes into the interface and renames the settings in the interface . please note every new client connection gets its own unique wwanxxx1 name for the interface that gets attached to the wan zone.