If our X-axis is filled by numeric values, we don't want to navigate by date or by category or by logaritmic. We may want those values, the same shown in X-axis, determinating our chart. For instance: latitude (X-axis) and longitude (Y-axis). We want to navigate by latitude and select view from lat. = 44 to lat. = 45. Date or datetime would be meaningless. Will it be possible?