The "Send to records center" will only send documents to one specified record center.

My current scenario is this:

Each department has ther own site collection

Each department wants its own records center



My idea is to make a custom action menu that depending on department site collection will send to the corresponding department Records Center.



How can I program a feaute that will enable users to send documents to the record center in the site collection.



I have investigated the "Record Center Web Service" and Microsoft.SharePoint.SPFile.SendToOfficialFile(System.String,System.String)



But I do not know how to specify to send to a specific records center, other than the one I specified in Central Administration