Starting from v1.3.0 the plugin can seed multiple layers of different grounds...
An automated farm using Super Seeds
You're one lever flip far from planting this square area...
Plants different seeds at the same time, the way you placed them in the chest
A lever action later, thius 17x17 square is seeded and starts growing. 289 blocks, - 12 water - 1 chest = 276 wheat soon to be harvested :)
The chest has automatically planted every farmland with crops
Place the crops in the chest the way you want them planted