So far I came to the conclusion that it is possible to imagine plants as NPC. When a trigger is triggered, for example, sowing seeds, the NPC will spawn without movement and almost without AI.
The only problem is that the NPC has no option to make them ghosts. What I mean is that the player will NOT be able to walk through them, simulating walking on the ground. So far, the NPC is suitable for the role of mobile furniture.
Making cattle out of them is even more difficult, because there are no trigger to control their minds forcing them to follow the character.
Either I did not understand the engine well and you can tell me how and what to do, or the ready-made functionality did not provide for the players to terraform changing tiles under their feet, for example, plowing the ground.
You can also suggest any workarounds for solving similar problems, because from this engine I need, first of all, a farm. The ability to plant plants, breed livestock, build machines, fences, houses.
The description of the engine just said that it is very suitable for creating the same farms. But so far I have not been able to find convenient functionality and have to look for workarounds.