Interface Inhertiance - override documenation

Question

In my project I have an interface called PullImportSource which specifies the method startImport(string) this method has a general documentation on what methods that implement this method do. However, I have another interface called ServerImportSource which is a subtype of PullImportSource. I would now like to override the documentation of the inherited member for implementations of subtypes of ServerImportSource. I am using XML documentation. The only way I see so far is hiding the inherited member and redocument. But this does not seem like the right to do. Thus, I would be glad for any feedback thanks in advance j