In Simeo - Edito, it is possible to add tiles (i.e. cobblestones) on the ground with the following command: Insertion > Ground tiles.
You may choose several options:
I all cases, you must set the size of the tiles in X and Y (cm) and their thickness (e.g. 1 cm). You may change the tiles colors.
The tiles are built by various methods in PaveGround (makePavement, makePavementUnderSelection ()…, can be used directly in scripts). They build a single GWA object, write it in a file in tmp/, then add a new EditoMockup based on it in the scene.
An example of tiles on the ground under two selected plants, after an Archimed1 radiative balance process: