Capacity of DataSeries

I found FifoCapacity Property for IDataSeries. As wrote in doc “If a value is set, when the point count reaches this value, older points will be discarded”. As I think it is very useful for real-time charts. But maybe you have the similar property (I not found it) which can set DataSeries not in dots but in bound axis values? It will be like axis length. As example, we set this value to 10 and if new added point has X coordinate between [current max X] and [current max X – 10] it will be added. Or if it more then [current max X]. And after adding all values less than [current max X – 10] will be discarded.
Or the best decision FOR ME: not delete values less than [current max X – 10] but just not display chart for them. It will be good for changing “length” property “on fly” or using zoom.
P.S. I completed decision like this to my project but now I thinking what if SciChart has it build-in?