Create multiple Edmx file of selected tables programmatically

Create multiple Edmx file of selected tables programmatically

In my project i need to generate multiple edmx file programmatically.
After spending hours on google i am not able to find a single way. I tried
EdmxGen tool
(http://msdn.microsoft.com/en-us/library/vstudio/bb387165(v=vs.100).aspx)
to generate csdl,ssdl and msl file but in this case it takes connection
string as input and creates single edmx of complete database. I want
different edmx for provided set of tables.