Assuming you are setting up a graph report template. Two things to check.
In the report properties window, general tab, make sure the report key set is PointID, Depth.
In the report properties window, Data Representation tab, you can select how to…
Without getting into specific details of what you are trying to accomplish, the "Next" and "Previous" functions are specifically provided to help with from - to type situations when you only have a top depth or a bottom depth. See if these will help your…