Not display a point

Hello,
i have 2point superimpose and i would like that there are juste the second is display.
i try opacity but when a click on point, he choose the second.
thanks!

Hmm. I’m confused. Can you a reproduce example to help us clarify what you’re asking?

i have this chart
image

so, i would like click on a point ( the first for example) and have our point index. but i would like the point index of the point below de color point.

it’s 2 traces superimpose