There is only one location mode variable. It can take one value at a time, such as home, away, Or custom values like “guest,” or “movie night.” At any one time, It is a single value in a single variable. Many people create custom mode values like “away night” but you still only get to have one value at a time.
There is a second separate variable, security.mode, which is used to indicate the armed state of the official security features.
The following FAQ should help, it has a lot of examples:
FAQ: Armed/Disarmed states vs Away/Home modes confusion (Classic app)