When adding tracks to a new session, inputs are automatically assigned in ascending order. For example, if you have an audio interface with eight inputs, creating four new mono audio tracks will automatically add four audio tracks with inputs assigned to the first four paths defined in the I/O Setup dialog. When creating stereo tracks, inputs are automatically assigned to subsequent input pairs.
The outputs automatically assigned to new tracks are determined by the
New Track Default Output Bus specified in the I/O Setup dialog.