[xml-dev] only allow custom styles

[Jan Metzner]

hi all,
i'm writing an import export filter for an xml based file format. The import xslt adds
custom styles to the document and the export xslt reads this styles to create my
own file format.
My question is, how to restrict the user to only use the custom styles supplied by
the import xslt and not the basic styles that comes with oo?
Is this possible by adding some "magic" to the generated oo document or do i need
to create a plugin that disables the normal userinterface and adds a special gui that
only allows the custom styles?

thanks

Jan