Locations can be set by few ways:
1. by geo coordinates (for example: 56.95,24.0833)
2. by location name (for example: Riga)
3. by location ID. Link to the list of city ID: http://bulk.openweathermap.org/sample/city.list.json.gz
4. by zip/post code with a country code (for example: 94040,us)
A few locations can be added to the macro at the same time by `|` delimiter. 
For example: `43.81821,7.76115|Riga|2643743|94040,us`.
Please note that API requests by city name, zip-codes and city id will be deprecated soon.