+ <vgroup>
+ <number id="delay" type="slider" arg="-delay %"
+ _label="Frame rate" _low-label="Low" _high-label="High"
+ low="0" high="100000" default="10000"
+ convert="invert"/>
+
+ <number id="z" type="slider" arg="-observer-z %"
+ _label="Zoom" _low-label="Near" _high-label="Far"
+ low="1.125" high="10.0" default="3.0"/>
+
+ <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
+ </vgroup>
+