Protecting a chart but allowing chart data to change?

[scott-atkinson]

Guys,

I have another issue.

I have a chart with macro buttons on which toggle between data that the chart presents.

How can i protect the sheet so the user cannot delete the buttons or chart but allow the chart to toggle the data?

 

[unmarkedhelicopter]

Post example sheet

 

[scott-atkinson]

Post example sheet

Chart.

Attached is a screen shot of my chart, I want to be able to protect the chart and buttons from being deleted but allow the data to be toggled.