This gameplay modification lets you use both tanks for seed on combi seed drills that have a separate mineral fertilizer tank. This mirrors real machines equipped with a flexible twin-chamber hopper. The main practical benefit is increased seed capacity, meaning fewer refilling stops during work.

Press Left Alt + M to switch the fertilizer tank between fertilizer and seed modes. The tank must be completely empty before switching. In seed mode, both tanks can only be filled with the same seed type, and regular seed cannot be mixed with crop-specific seed. When the active tank runs empty, the machine automatically switches to the other one. Note that separate liquid fertilizer tanks are not affected by the switch, and fertilization is disabled entirely while the tank is in seed mode.

The current version (1.1.0.0) is fully compatible with Real Seeders: crop-specific seed can now be used in both tanks, an issue preventing combi seed drills from loading such seed has been fixed, and the seed display for crop-specific types and empty tanks has been improved. Big bags and pallets are also correctly detected again after switching modes or unloading.