|     field |     type   |     contents / default value |     |
| ncell | integer | 100 | variable: ncell type: integer |
| timestep | double | 0.5 | variable: timestep type: double |
| maxPoints | integer | 1000 | variable: maxPoints type: integer |
| freezeSeed | boolean | false | variable: freezeSeed type: boolean |
| PopGrower-results | object | CalcResults | |
| histogram | object | HistogramSet | |
| grpars | list selection; boolean; one only | ArtCellParameters |