Click the pencil icon in the Actions column. The Manage Transaction window loads the transaction's Date, Accounts, Description, Type, Category and Amount (the currency prefix next to Amount reflects the selected account). Change what you need and click Save Transaction. The window also shows a Mark as reviewed / Reviewed toggle button and a Remove Transaction button that are only available when editing, not when adding. Validation messages appear in a red box at the top of the window (for example Invalid Transaction ! if the record was deleted meanwhile).