Yes, you can create sub-groups under Account group in BUSY, please follow below steps:
Step 1:In BUSY you can use Account Group Option, by using this you can create sub group under the primary expense group and categorize your expense. To know how to create Account Group can follow these steps:
Step 2: Open BUSY Accounting Software and select the company you want to work with. Then, go to the Administration tab on the top menu bar and click on Masters.
Step 3: Select Account Group option and click on Add.
Step 4: Enter your account group name and set Primary Group as N. Then, select the main expense group name from the drop-down list, such as Expenses (Direct/Mfg.) or Expenses (Indirect/Admn.). Click on Save.
Step 5: Now, when you create an expense master, you can select the account group that you have created and categorize your expense accordingly.