...

Income items are used to categorize the type and sources of income. Each time you record an income, you specify an income item for this income.

...

Click the Create group button to create groups (folder) for income item. 

Creating a Group

...

of Income

...

 Items

In the Expense Items (create folder) form, to create a group, enter its description in the Description field.

...

Then, you can populate the group by creating new income items or by using drag and drop of existing income items. 

See also