Usages in Amenti are categorized into two types: 'General' usage and 'Detailed' usage. In 'General' usage, you can define the usage percentages for living, commercial, and side purposes. In 'Detailed' usage, you can input specific units and apartments either in bulk or individually, edit their sizes, and copy the settings to other floors. When changing from detailed usage to general usage you can easily convert your general usage to the same standards as your detailed usage. Changes in the general usages do not affect the detailed usage.