The selection bar indicates the current row. Use the Up-Arrow and Down-Arrow keys to move the selection bar. Click a cell to select its row. Use Ctrl+Click or Shift+Click to select multiple rows.

Right-click a row to open the context menu and choose Insert or Delete. Alternatively, use the INS and DEL keys.

The natural.ddmEditor.insertLocation preference determines whether the Insert command adds a new field before or after the selected row. See DDM Editor Preferences.

To create a comment line, insert a field and set its Type to *.