They told me they were working on making a on/off toggle switch for the app.. But as amazon echo goes... I would just say "Alexa trigger living room lights" I think that's your only option goodluck!
Just FYI...that trigger statement won't work....well it will but not in a worthwhile manner..you COULD set up a trigger which uses the IFTTT maker channel but it's throttled to only execute a command every 15 minutes or so...this works fine if you are just turning on the lights at sunset but not so well if you want your living room lights to go off so you can go to bed.
Rather annoyed to still have to tell Alexa to turn on the lights to get them turned off...seems a quick kludge fix could have been implemented while the permanent fix was decided upon.
I worried the rate limiting would affect me as well, but I've used this for over 2 months without more than 15 seconds delay. It triggers my lights on/off every time.