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At least in a smart home skill, this is not available. I'd suggest posting this as a feature request in our ideas space here.
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Routine with Smart Home - No off option, 1% sends 100
Alexa saying "a few things share that name which one did you want?" when i say turn on color light
Devices not listed in Routines
Smarthome Devices not listed in Routine triggers
Is the usage of PlaybackController and Speaker capabilities supported in routines?