Please tell me how to create a 2nd legend on a stacked chart.

[matkinson]

I am creating a combination stacked cluster graph and I need to create a
second legend with colors to make it clear to the audience what is going on?
Please let me know if there is a way to do this and how to do it?

Thank you!

 

[Echo S]

I am creating a combination stacked cluster graph and I need to create a
second legend with colors to make it clear to the audience what is going
on?
Please let me know if there is a way to do this and how to do it?

Off the top of my head, I suspect you'll have to add it manually.