Hi,
Following is my sample property file. I want to make the property "Line Year" to be multiselect.
<xmp_definitions>
</xmp_schema prefix='x' namespace='x....'
<xmp_property name='LineYear' category='external' label='Line Year' type='closedchoice' element_type='text'>
<xmp_choice raw_value="2007" label="2007"/>
<xmp_choice raw_value="2008" label="2008"/>
<xmp_choice raw_value="2009" label="2009"/>
</xmp_property>
</xmp_schema>
</xmp_definitions>