A method of distributing at least one product on a ground surface with a drill having two sets of seeding units connected to a distribution system. A desired distribution pattern is selected between a separate pattern, where a first one of the at least one product is distributed through only the first sets of seeding units, and a mixed pattern, where the first product is distributed through both sets of seeding units. A distribution system is provided, defining a communication between the two sets of seeding units and a reservoir of the drill. When the separate pattern is selected, first and second sections of the distribution system are configured such that only the first section is in communication with the first set of seeding units, and the first product is received from the reservoir in the first section for distribution through only the first set of seeding units. When the mixed pattern is selected, the first and second sections are configured such that the first section is in communication with both sets of seeding units, and the first product is received from the reservoir in the first and second sections for simultaneous distribution through both sets of seeding units.
