App Designer button click again

Hello! Do I need the first click of the button to delete the chart and all its contents, and the second click to return everything is possible?

function VisiblePlotButtonPushed(app, event)
            app.plot.Visible = 'off';
end

Now I use this method, but it does not remove the contents of the chart

Answer 1

[Cris LaPierre]

Try this instead

cla(app.UIAxes)