How could i inherit from two contentypes? Doing like this dont work?
<ContentType ID="0x010100C568DB52D9D0A14D9B2FDCC96666E9F2007948130EC3DB064584E219954237AF390064DEA0F50FC8C147B0B6EA0636C4A7D4" Name="Welcomepage" Group="My Content Types" Description="Welcome page" Inherits="TRUE" Version="0">
<ContentType ID="0x010100C568DB52D9D0A14D9B2FDCC96666E9F2007948130EC3DB064584E219954237AF3900242457EFB8B24247815D688C526CD44D010021935596B4CE427A892D41E2BBED1797" Name="My own content type" Group="My Content Types" Description="Welcome page" Inherits="TRUE" Version="0">
<FieldRefs>
<FieldRef ID="{e854ecfc-6f7e-47e5-8b86-6f7cac951fca}" Required="FALSE" Name="PageContent1" />
<FieldRef ID="{ebc7bfe0-c3fd-4967-8127-8a30f2894d19}" Required="FALSE" Name="PageContent2" />
<FieldRef ID="{e3d9a193-a06e-4e61-9f57-67048ac9be0c}" Required="FALSE" Name="PageContent3" />
</FieldRefs>
</ContentType>
</ContentType>