[Account Management] What is the difference between 'Main', 'Sub, and 'Draft' account type?

Main Account:

1. Can create new application draft

2. Can submit application

3. Can view all applications created by Sub Account and Draft Account

Sub Account:

1. Same as Main Account but you cannot view other applications made by Main Account, other Sub Account and Draft Account

Draft Account:

1. Can only create new application draft

2. Cannot view other applications made by Main Account, Sub Account and other Draft Account