Undo Last Import
This will delete all of the transactions that were added during the last import.
Delete
All transactions
This will delete all of the transactions in all of your bank accounts. Once all transactions have been deleted, you will then be asked whether or not you also wish to delete all of your transaction types. This will not delete your bank accounts, but will effectively delete all of the information stored within each bank account in Personal Money Manager.
Clear all transaction types
This will clear all of the transaction type information from all of your transactions. Your transactions will not be deleted, only the "transaction type" information will be cleared.