Is there a way to change the FIM Schema

Hi All 

David Lundell answered my earlier question on the limit on Grouping elements in an RCDC

The tabs are Grouping elements in the RCDC XML. You can have 16. Since you typically have Header and Summary Groupings (although these are optional) you typically can have 14. 

http://technet.microsoft.com/en-us/library/ee534918(v=ws.10).aspx

<xsd:element name="Panel"><xsd:complexType><xsd:sequence><xsd:element ref="my:Grouping" minOccurs="1" maxOccurs="16"/>
Now can anyone tell me if it is possible to increase this limit? I don't see a valid reason for having a limit in the first place. pardon the pun but it is extremely limiting.