Replace row of array in place

[AntonioNI]

Becouse I have 2 graphs with 4 plots each, and each plot could be 608400 points (wich are decimated to 2 points per pixel max), but the problem is the same.

[altenbach]

I would replace first with the new element at position 0 of the row, then rotate (instead of rotate, then replace the last element as you currently do).

This way you can wire a diagram constant of zero to the index and don't need to worry about the size or the row. Less wires! 😄