Switch with "external" state or attuator (Basic UI)

[rlkoshak (Rich Koshak)]

Design Pattern: Proxy Item

Edit: Updates for OH 4 Please see https://community.openhab.org/t/design-pattern-what-is-a-design-pattern-and-how-do-i-use-them/40319 for information on what a DP is and how to use them. Problem Statement Often one faces one or more of the following situations: perform additional logic before sending a command to a device (e.g. make sure the device can safely receive the command) send a command to multiple devices based on a single event and Groups, the follow profile, or linking multiple C…