tell application "System Preferences"
activate
reveal pane "Network"
delay 1
tell application "System Events"
    tell process "System Preferences"
        click button "Advanced…" of window "Network"
        delay 1
        click radio button "Wi-Fi" of tab group 1 of sheet 1 of window "Network"
        delay 0.5
        tell application "System Events" to keystroke "Cole"
        delay 0.2
    end tell
end tell