"Drummer" tracks are Logic generated and therefore different than Software Instrument tracks.
http://manuals.info.apple.com/MANUALS/1000/MA1648/en_US/logic_pro_x_user_guide.p df pg52 pg365
If you want to use an electronic drum set or pads or a Midi keyboard to play/trigger and record some of Logics drums,
create a Software Instrument track and add an instance of Drum Machine or Drum Kit Designer from the Library or add Drum kit Designer, an EXS24 drum kit
or an instance of Ultrabeat to the "Instrument" slot.
From there you can "play" the drums or pencil them in, in the Piano Roll or Step Editor. You can also program Ultrabeat patterns and drag them onto the Arrange.
There are just so many ways to get drums into a song. The level of control you have is up to you and your knowledge of Logic.
Take your time and work through the Manual and you'll knowledgeable in no time, well, pretty soon...