Build a ZigZag Delta indicator whose ends will be defined with the help of the delta volume.

I am looking for the zigzag indicator to serve as a basis for calculating the accumulated delta, and add a change signal, if the accumulated delta volume increases or decreases as the zigzag indicator makes a new high or a new low. I have the prompt to do it and I have the C# file for the ninjatrader 8 platform.

I attach an image of the example script: