The required n attribute is the number of elements in this set.
Source
<xs:element name="MoveGroups" type="ExplodedViewMoveGroupsType"><xs:annotation><xs:documentation>The MoveGroups element is a sequence of translate and rotate operations that is applied to the groups of components and bodies.</xs:documentation></xs:annotation></xs:element>
The ExplodedViewType defines a sequence of translate and rotate operations that is applied to the groups of components and bodies. The exploded view shows each object separated from others.
The optional label attribute is the model entity "nameplate". Normally it can be seen at the entity item in the project tree.
Source
<xs:complexType name="ExplodedViewType"><xs:annotation><xs:documentation>The ExplodedViewType defines a sequence of translate and rotate operations that is applied to the groups of components and bodies. The exploded view shows each object separated from others.</xs:documentation></xs:annotation><xs:complexContent><xs:extension base="NodeWithIdBaseType"><xs:sequence><xs:element name="MoveGroups" type="ExplodedViewMoveGroupsType"><xs:annotation><xs:documentation>The MoveGroups element is a sequence of translate and rotate operations that is applied to the groups of components and bodies.</xs:documentation></xs:annotation></xs:element></xs:sequence></xs:extension></xs:complexContent></xs:complexType>