Sometime before occupants enter, set up a maintain plus timer schedule before normal hours, using same group of relays, but set to "No automatic on". Have this schedule end at the same time as the original schedule. This will result in the schedule running, but requires a manual button press to turn the lights on, and even if the switch has a timer, it will not be activated by the initial button press.
How can I get around a timer on my switch
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