| **<aid="table.first_column"name="table.first_column">table.first_column</a>**<br/>**Command line**: --table.first_column<br/>**Environment variable**: TABLE.FIRST_COLUMN | Content of the first column. | First column is description if "[Tag names](#table.columns)" has only one value, otherwise it's namespace | [`choice`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory` | Tag name must not have the same name has first column.<br/>**Choices**: <br/>• description<br/>• namespace |
| **<aid="table.columns"name="table.columns">table.columns</a>**<br/>**Command line**: --table.columns<br/>**Environment variable**: TABLE.COLUMNS | Tag names.<br/>Each tag creates a column. The content of the columns comes from the variables with the defined tags. | | [`string`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `multiple``mandatory` | `unique` |