Hi,

Account groups are useful to list multiple accounts as sub-accounts of a bigger account. By default, groups are handled automatically based on the code of the group. For example, a new account 131200 is going to be part of group 131000. You can attribute a specific group to an account in the Group field under View.

To create a new and edit account group, activate developer mode and head to Accounting ‣ Configuration ‣ Account Groups.

Hope it helps,