Flags/states in automations

[nzjrs]

Automation 2.0 : Bug in grouped devices

@AqaraOfficial @Aqara_PM_Donie Aqara here is another example of the need for variables in automations. @JohnD and I both use them, you can see his here uses a push message to be valid, I switch an unused relay channel. (If you ever add this feature, add counters too)