A metering apparatus for metering material for metering, in particular for metering seeds in a seed drill, having a) a plurality of metering devices (4.1-4.3) each having at least one rotatable metering wheel (6.1-6.3, 7.1-7.3) for metering the material for metering, in particular each having a fine-metering wheel (7.1-7.3) and each having a normal-metering wheel (6.1-6.3), and b) a rotatable metering drive shaft for jointly driving the metering wheels (6.1-6.3, 7.1-7.3) of the metering devices (4.1-4.3), wherein the metering wheels (6.1-6.3, 7.1-7.3) are arranged on the common metering drive shaft, wherein c) the metering drive shaft is axially displaceable in order to set one of a plurality of types of operation of the metering apparatus depending on the axial position of the metering drive shaft, characterized by at least one of the following complexes of features d) and/or e1) to e5): d) that the metering drive shaft supports a plurality of configuration elements (11.1-11.3) which are assigned to the individual metering devices (4.1-4.3) and determine which of the metering devices (4.1-4.3) is a tramline metering device, and/or e1) that, in a tramline mode, at least one of the metering devices (4.1-4.3) is not operated as a tramline metering device so that it does not dispense any material for metering in a tramline in a field, while the other metering devices (4.1-4.2) are also driven as normal metering devices in the tramline mode in order to dispense the material for metering, e2) that, in a normal mode, each of the metering devices (4.1-4.3) is driven in order to dispense the material for metering, e3) that the metering drive shaft is axially displaceable between a tramline position for the tramline mode and a basic position for the normal mode, and e4) that the metering drive shaft in the basic position drives all of the metering devices (4.1-4.3), including the tramline metering device, and therefore all of the metering devices (4.1-4.3) dispense the material for metering, and e5) that the metering drive shaft in the tramline position only drives the normal metering devices rather than the at least one tramline metering device. a) a plurality of metering devices (4.1-4.3) each having at least one rotatable metering wheel (6.1-6.3, 7.1-7.3) for metering the material for metering, in particular each having a fine-metering wheel (7.1-7.3) and each having a normal-metering wheel (6.1-6.3), and b) a rotatable metering drive shaft for jointly driving the metering wheels (6.1-6.3, 7.1-7.3) of the metering devices (4.1-4.3), wherein the metering wheels (6.1-6.3, 7.1-7.3) are arranged on the common metering drive shaft, wherein c) the metering drive shaft is axially displaceable in order to set one of a plurality of types of operation of the metering apparatus depending on the axial position of the metering drive shaft, d) that the metering drive shaft supports a plurality of configuration elements (11.1-11.3) which are assigned to the individual metering devices (4.1-4.3) and determine which of the metering devices (4.1-4.3) is a tramline metering device, and/or e1) that, in a tramline mode, at least one of the metering devices (4.1-4.3) is not operated as a tramline metering device so that it does not dispense any material for metering in a tramline in a field, while the other metering devices (4.1-4.2) are also driven as normal metering devices in the tramline mode in order to dispense the material for metering, e2) that, in a normal mode, each of the metering devices (4.1-4.3) is driven in order to dispense the material for metering, e3) that the metering drive shaft is axially displaceable between a tramline position for the tramline mode and a basic position for the normal mode, and e4) that the metering drive shaft in the basic position drives all of the metering devices (4.1-4.3), including the tramline metering device, and therefore all of the metering devices (4.1-4.3) dispense the material for metering, and e5) that the metering drive shaft in the tramline position only drives the normal metering devices rather than the at least one tramline metering device.