Why i cannt invisible curScore.selection.element

import MuseScore 3.0
import QtQuick 2.9
MuseScore {
menuPath: "Plugins.debug3"
onRun: {
curScore.startCmd()
curScore.selection.selectRange(0,curScore.lastSegment.tick + 1,0,curScore.nstaves); //cmd("select-all")
curScore.selection.elements.visible = false;
curScore.endCmd()
}
}