no, as written, the second function does not help here. What it let’s you do is this:
when you make a selection with 2 fingers (for example), then ALL the notes between your fingers, no matter what pitch, are selected. With SECOND, the selected notes are constrained to the actual area marked with your fingers your fingers. (but it does not let you select individual steps)
See photos, the one with the smaller selected area is the one with SECOND
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