mpvtools

I am facing a problem to use mpvsdk2.0.

I think that the mpvsdk2.0 cannot handle plurality of
<mpv:Metadata> element in its parent element.

For example, The MPV-Core schema 1.0 allows to
describe such as below.

<mpv:Still>
<mpv:Metadata>
<SomeElement01/>
</mpv:Metadata>
<mpv:Metadata>
<SomeElement02/>
</mpv:Metadata>
</mpv:Still>

However the mpvsdk2.0 cannot handle plurality of
<mpv:Metadata> element in its parent element.
Because the pmpvMetadata whitch is a member variable
of strucure MpvSimpleAsset_S and so on, is MpvXml*
type.

Is this my misunderstanding ?