SAP - HTTP content Server: remove search limitation on one document class

In the SAP http content server only one document class can be configured for storage and archiving - usually SAP_MISC. In some scenarios it happens that documents are imported into DOXiS from other source but need to be linked to SAP. These documents usually belong to a different document class than SAP_MISC. In out current setup we have enhanced SAP_MISC by more than 50 inde fields. It would be great that the HCS can be configured to allow mutliple documetn classes for searching.