TP-Link TL-WDR3600 v1, here, running 15.05.1

I have two SSIDs on both 2.4GHz and 5GHz bands but the leds only react to activity on the main SSID (i.e. wlan0 and wlan1) and ignore the secondary guest SSID (wlan0-1 and wlan1-1).

Is there a way to trigger on both? I did search the forum and the wiki but found no solution.