Again, yes you can. This was answered in your last question.
You have to setup the WiFi adapter via UC Surface (FireWire / Wired Network) first. Then set the Direct Connection between the CS18 and RM. That will provide CS18 w/ AVB and wireless control of the RM.
http://support.presonus.com/hc/en-us/articles/210047643-StudioLive-RM-Mixer-Wired-and-Wireless-Network-Setup-and-Troubleshooting