Ah ok, I have a better idea of what you want to do now.
Unfortunately there isn't anything inside GB that can come anywhere close to Acoustica Beatcraft, but there are two tools inside Garageband that can help you do something similar.
First are the built-in keyboards, which will enable you to trigger drum samples with your computer keyboard or mouse. Go to Window -> Keyboard or Window -> Musical Typing. Click with your mouse on the Keyboard or press keys on your computer keyboard with Musical Typing, and you will trigger different drum samples for whatever kit you've chosen for that software track.
Next is the Track Editor: in Piano Roll mode, you can create and see midi notes somewhat similar to the view in this screenshot from AB. On the left side of the Editor, you will see a sideways piano keyboard. When you assign a drum kit to a software track, each of the piano keys corresponds to a different instrument: hi hat, snare, bass drum, etc---you'll have to play them using the on-screen keyboard or musical typing to see what they correspond to. In order to add a MIDI note you hold the CMD button and click with the mouse.
So, if you wanted to add a closed hi-hat hit, you would CMD-click on the Track Editor row corresponding to the closed hi-hat piano key, and then you can drag the MIDI note left & right to change the beat it plays on, or resize the note, which will change its duration.
Or, as you've already observed, you can use Musical Typing to play out a pattern on your computer keyboard while recording, and you will see the midi notes appear in real time in the Track Editor.
Hope this helps, feel free to ask more questions.