Group Button label???

Does anyone know if there is a way to label or tag a Group Button so that it is clear what the button does? It would be great if I could add a text box with an arrow (or such) next to the button that will tell users to activate the button to see the hidden columns or rows.

Any ideas?

Thanks. David

Why not type in a cell right next to the button stating what it does.

In this particular example (see attached example) Screenshot Excel.png my Group button is above row "A". I would like to be able to place a text box or such next to the button. I know it's not in the "workspace" but I thought I would put the question out there to see if anyone knows of a means to customize the "bar"....