When you have added drawing objects to a chart, you can later either hide them temporarily, so that they are not visible anymore, or remove them completely from the chart (delete them).
You can hide the complete drawing object, including all lines and levels, or hide individual lines or levels of a drawing object using visibility points (for example, certain levels of a Fibonacci object). When you change the chart type or data compression of a chart, you can choose to keep drawing objects visible, or automatically hide them. When you delete a drawing object, it is removed from the chart completely, including all its settings. You can also delete all drawing objects (visible or invisible) at once.