<extension point="org.eclipse.ui.propertyPages"> <page class="com.company.properties.MyPropertyPage" id="com.company.properties.samplePropertyPage" name="My Project"> <enabledWhen> <instanceof value="org.eclipse.core.resources.IProject"> </instanceof> </enabledWhen> <filter name="nature" value="com.company.natures"> </filter> </page> </extension>