Correct. Dots on the invisible line in the traditional positions (*1*, 3, 5, 7, 9, 12, etc) with the sidelines in the non-dot positions (ie. 2, 4, 6, 8, 10, 11 etc). *I would also like to add a dot at the 1st fret in place of the sideline.
Regarding the 12th and 24th positions, let's do the 3 dots with the center dot being centered on the invisible line. If three will not fit on the 24th then we can default to one dot.
Hope this clarifies it. I know this custom setup is confusing on paper but I think it makes sense from a playing perspective.