Label Cards showing results of a math function

[JustinG]

See this recent discussion:

[Solved] Actions in custom widgets - update item

Your volume channel may accept INCREASE and DECREASE commands, in which case you won’t have to dynamically define anything. If the channel does not, or you want increments that are a different size than the binding defined increases and decreases, then you’ll need to use an expression to build the numerical command. To build the command you only need to remember one important thing: the state that’s returned from the items object is a string not a number (so you can’t do math until you fix tha…