Use the Favorites and Goto List windows to return to previously bookmarked or visited records.
Use the Find commands (shortcut Alt+F) to filter a selection of Invoices, Personnel, Sites and Vacancies.

Use the Goto command (Alt+G) from the Invoices, Personnel, Sites, Timesheets or Vacancies forms to find a specific record.

Use the Edit->Find... menu command (shortcut Ctrl+F) to search for arbitrary text in any or all fields on a form.