- <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"/>
+ <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>