_label="Duration" _low-label="1 Second" _high-label="1 Minute"
low="1" high="60" default="5"/>
<number id="layers" type="spinbutton" arg="-layers %"
_label="Duration" _low-label="1 Second" _high-label="1 Minute"
low="1" high="60" default="5"/>
<number id="layers" type="spinbutton" arg="-layers %"