- <boolean id="fade" _label="Fade" arg-unset="-no-fade"/>
- <boolean id="dissolve" _label="Dissolve" arg-set="-dissolve"/>
- <boolean id="wire" _label="Wireframe" arg-set="-wireframe"/>
+ <boolean id="fade" _label="Fade" arg-unset="-no-fade"/>
+ <boolean id="blur" _label="Motion Blur" arg-unset="-no-blur"/>
+ </hgroup>
+ <hgroup>
+ <boolean id="dissolve" _label="Dissolve" arg-set="-dissolve"/>
+ <boolean id="wire" _label="Wireframe" arg-set="-wireframe"/>