the least and probably only thing you may have to take care is about configuring each MIDI keyboard/controller to send on different MIDI channels on their own, so that it can discriminate on which is which.
then you can setup one MIDI track/channel for each controller and insert a respective instrument plugin; connect all keyboard/controllers to the same MIDI input bus port, usually Master In (and also to Control In port, in case if you have it configured as dedicated).
yes it's all perfectly possible
the least and probably only thing you may have to take care is about configuring each MIDI keyboard/controller to send on different MIDI channels on their own, so that it can discriminate on which is which.
then you can setup one MIDI track/channel for each controller and insert a respective instrument plugin; connect all keyboard/controllers to the same MIDI input bus port, usually Master In (and also to Control In port, in case if you have it configured as dedicated).
hth.
cheers