Options are used to set up your default weight unit, time zone, package description and city of manufacture.
To set up your Options select
Settings > Options
Units - you have the option to set your importing weight to kgs, grams or Lbs depending on what you deafult weights you are importing.
Display Time Zone - set this to your time zone.
Package Description - Use a generic description for the products you are shipping when setting your package description. This description may be used for customs clearance.
City of Manufacture - Enter in a default city of manufacture this can be changed individually in each order.