To copy records do the following:
Select the record by clicking on the left-hand row bar.
Click on the Copy button in the toolbar (or right-click your mouse and select Copy from the menu).
Select the new row at the end of the table and click on the Paste button in the toolbar (or by right-clicking your mouse). The record will be copied to the new row.
To copy several records, follow the above instructions but make sure you first select the relevant records by dragging your mouse before copying and pasting.
In the same way, you can copy records from one table and paste them into another. Take care though, you need to have the same – or almost the same – table structure to be able to do this sensibly.
Records can also be copied to and from Spreadsheet and Write documents.