Native Instruments MASCHINE MIKRO MK3 Groove Production Studio (Black) - Manual (Page 725)

The Record page in the software.
17.2.2 Selecting the Source and the Recording Mode
At the bottom of the Record page, the parameters in the INPUT section and the RECORDING
section allow you to select which source should be recorded and how the recording should be
made.
Adjusting the source and mode of the recording in the software.
Selecting the Source to Record
► Click the SOURCE selector on the left to select the type of source you want to record:
Sampling and Sample Mapping
Recording Audio
MASCHINE MIKRO - Manual - 725