You can manipulate transactions with the toolbar buttons or the Transaction menu:
You can delete a transaction or an individual split.
This undoes any changes you have made to the transaction you are currently entering or changing.
This moves the cursor to the last line of the register where new transactions are entered.
When you have selected an existing transaction or split, this takes you to the corresponding register entry in the other account that is involved in the transaction or split.
This is an alternative way to enter a transaction. You can do a transfer between any two accounts without opening up other registers.
Closes this register.