Please add wifimgr to the distro.
That would conflict with networkmgr. If you prefer to use wifimgr, you can add it by running pkg install wifimgr.
well, nothing more simple than freebsd for getting WIFI .
sudo su
wpa_passphrase MYWIFIBOX MYSECRETWPA > /etc/wpa_supplicant.conf
You get net 
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