At the top, just above each record grid, of each screen, is the record grid menu. You can use the the "Enter" key to edit any selected record, the "Delete" key to delete the selected record, and "Insert" key to add a record.
Use the arrow keys on your keyboard to scroll up and down through the record grid.
The "Find" menu item will allow you to quickly locate a record that meets a certain field's criteria. If there are multiple results (like several flight records with the same aircraft identification but are scattered throughout your flight records), simply hit your "F3" key to find the next item with the same criteria.
The "Help" menu item (as with all help menu items above the grids) will launch the help file directly associated with the current section.