| Name | Value | Description | |||
| exNoLines | 0 | The group displays no grid lines. | |||
| exAllLines | -1 | The group displays vertical and horizontal grid lines. | |||
| exRowLines | -2 | The group paints grid lines only for current rows. | |||
| exHLines | 1 | Only horizontal grid lines are shown. | |||
| exVLines | 2 | Only vertical grid lines are shown. |