How to: Select multiple objects in a chart.
Solution:
Select the first object, and press and hold down SHIFT while clicking on each of the objects.
1) Select the desired chart:
a) If the chart is embedded on the worksheet, click once on the chart. (A striped border with handles appears around the chart.)
b) If the chart is on a separate chart sheet, click the tab for the chart sheet.
2) Select on the first object.
3) Press and hold down SHIFT.
4) Select each of the remaining objects.