"Zoom to" tool from navtable, zooms to the feature the user is viewing in navtable panel. In some cases, the user may wants to see with that tool a different zoom level from set in navtable. Allow the user to set that value. Maybe it could be achieved filling the value in navtable preferences page? See this thread for more info: http://osgeo-org.1803224.n2.nabble.com/Nivel-de-zoom-incontrolable-e-inu...