Seeing the entire neck clearly should involve seeing all possible triad voicings. This page shows every major triad in two ways, either on three adjacent strings or across four strings. While more open or spread voicings do exist, they tend to fall outside the scope of a practical, position-based view of the fretboard.
On page one you have seven string groups for the Cmajor triad.
On pages two and three these voicings are expanded to minor triads by applying a common chord progression in all voicings and positions.
