Hi Bob,

No need to be embarrassed, we all have to start somewhere! I'm happy to help you with this.

To change the shape and size of the data points in your chart, follow these steps:

1. Click on the chart to select it.
2. Click on the data series that you want to change the data point shape and size for. You should see the data points highlighted.
3. Right-click on one of the data points and select "Format Data Series" from the drop-down menu.
4. In the "Format Data Series" pane that appears on the right-hand side of the screen, click on the "Marker Options" tab.
5. Under "Marker Options", you can choose the shape of the data points by selecting a shape from the "Marker Type" drop-down menu. To change the size of the data points, adjust the number in the "Size" box.
6. Once you've made your changes, click "Close" to close the "Format Data Series" pane.

That's it! Your data points should now be the shape and size that you selected.