In short
Click “⏺ Multitrack” at the top of the window. Choose the folder, the quality (24-bit or 32-bit float), whether to record the raw or processed sound, and the channels. Then click “● Record multitrack”.
Each channel becomes a WAV file, all the same length and with the start time, so they open aligned in your audio editing program.
More details
Multitrack recording is explained step by step in the Audio category.
See also
Still have questions? Write to suporte@nwk.com.br.