I could not quite understand your scenario and that is why, in case the information below does not help you, please explain in detail the problem that you have. It will be best if you post your code here as well.
Now, regarding multiple axes in RadChartView - additional horizontal/vertical axes can be specified through CartesianSeries.HorizontalAxis/VerticalAxis properties.
In case you need additional information on creating series dynamically as well, please refer to the following forum post for information - http://www.telerik.com/community/forums/silverlight/charting-kit/multiple-dynamic-series-in-mvvm.aspx.
the Telerik team
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