You can record multiple versions, or takes, in quick succession. Later, you can preview the take recordings and choose which one you want to use in the project.
Recording multiple MIDI takes is possible only when Show Advanced Tools is selected in the Advanced preferences pane.
Choose Logic Pro X > Preferences > Recording, then choose Create Take Folder from the Overlapping MIDI Recordings pop-up menu.
Drag left or right in the top part of the ruler.
The cycle area appears as a yellow strip in the ruler, and Cycle mode is automatically turned on.
Click the Record button 
in the control bar (or press R) to start recording.
Recording starts automatically at the beginning of the defined cycle area.
Use your MIDI keyboard, Musical Typing window, or onscreen keyboard to play some notes. Record as many cycle passes as you wish.
Note: Each previously recorded take is automatically muted during recording.
Click the Stop button 
in the control bar (or press the Space bar) to stop recording.
The selected track contains a closed take folder with multiple take regions inside.
Open the take folder by doing one of the following:
Click the disclosure triangle in the upper-left corner of the take folder.
Double-click the take folder.
Select the take folder and press Control-F.