From researching on the forums here, I know natively lovelace doesn’t support that but I was wondering if the custom Mushroom Template card could pull it off and I just cannot figure out the syntax. Thanks!
double_tap_action:
action: call-service
service: |-
{% if is_state('climate.living_room_ac', 'off') %}
climate.turn_on
{% else %}
climate.turn_off
{% endif %}