It would nice if the editing window displayed ‘Any of’ or ‘All of’ when using device variables. Currently it can be confusing. For example, in the screenshot below the first one is an ‘All of’ and the second one an ‘Any of’, but there’s no way to know that without opening the editing window and clicking on the condition.
I realize that device variables can be both singular and plural, and this could be undesirable in the former circumstance, so this might have to be a display option.
Either way, having this ability would be 