on headings
| Cmd | When Applied To Object | Action |
|---|---|---|
| ? | Name | Display context help information. |
| + | Name | Expand to reveal all entries. |
| – | Name | Collapse to show only first level. |
| SV | Name | Sort next level by value. |
| SN | Name | Sort next level entries by name |
| SD | Name | Sort next level entries by service time |