I have 100 names of people in column A, with age in column
B and weight in Column C, and I've made a scatter graph
from this data, without any datalabels.

If a single datapoint is highlighted, I want a macro that
adds the relevant perons's name for that datapoint.

(Or, and I guess this is not possible, can that person's
name show up in the yellow tooltip as the mouse runs over
the label?)

Thanks in advance for any help.

Daniel