Setting a master variable / switch

[H102 (CM6.5 H102)]

@MadFrankie

I’ve been playing with groups and haven’t quite got that down yet…maybe time for some more reading!

A topic that may interest you, about groups and rules, created by one of the best.

Design Pattern: Working with Groups in Rules

Edit: Updates for OH 4, inclusion of JS Scripting and Blockly examples, removed the doors example as it’s superfluous. Please see https://community.openhab.org/t/design-pattern-what-is-a-design-pattern-and-how-do-i-use-them/40319 for how to read and use DPs. Problem Statement One powerful way to consolidate code in rules is to use array/list manipulation operations on the members of a Group. For example, filter down to just those members that are ON, get a list of the labels of those Items tha…