Control axis of "not displaying all data" on visuals

Although I do not necessarily agree, I understand the limitation and rationale behind "Too many values" / "Not displaying all data" when there are too many plotted points on a visual. That being said, the report author should have control on which axis from which data points are eliminated. For instance, if I have date on the x axis and a legend of an important dimension on the y axis, I should be able to tell the power bi engine to sample from the dates and not the legend.