1. Click a memory row to highlight it (Note: Highlight multiple memory rows to edit common settings of more than one memory at the same time).
2. Right-click the highlighted memory row and choose ‘Properties’.
3. In the ‘Edit details for memory’ window, click the ‘Extra’ tab.
Or simply click ‘View’ in the menu bar and enable ‘Show extra fields’ so that the ‘extra’ settings show up a columns in the spreadsheet style memory editor.