C’est bon ! solution opérationnelle 
@BBE : oui le booléen était déjà dans la solution : input_booleen qui modifie la variable helper dans HA. (facile avec Node Red).
@ArminasTV : très bonne idée merci bcp.
J’ai utilisé le event all pour surveiller uniquement les state_changed en filtrant sur l’entity switch du micromodule !
Puis un switch pour verifier le context et filtrer les event qui n’ont pas de user_id ! Et voila !
Le résultat est parfait tout fonctionne comme voulu et l’interrupteur physique permet de forcer l’état des luminaires Terrasse en contrôlant ou non la détection de mouvement.
Merci pour vos idées.
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