Adding new accounts

when locating expenditures or income/sales we choose sub-accounts from the main accounts: Income (Interest received, sales); Expenses (accounting fees, advert & promotion, bank charger…); Assets (account receivables, billable, wht …) and etc.
my question is how can I add/remove an account or sub-account?

thank you

Add/remove from where?

If it is from the Chart of Account, then Settings, Chart of Account but to remove an account you will have to change all transactions to use another valid account

If you mean from the drop-down list, then you can’t

What you refer to as main accounts are not accounts. They are groups.

Yes. No I see.

Thank you