hide matrix if needed

Hi

I try to do something, but maybe not whith the good way

I explain

The idea is to show a matrice if the user select this choice, in the other case i show details in the matrix

I have a segment wth two choice: (show, hide)

i have a mesaure with a switch, who is link to the Matrix (in order to publish the data needed)

When the user select show,my data arewellshow in the matrice

But i don't know who to hide the matrix or make all blank if the user select Hide

Or maybe it is better to do it in a different way

thanks

nicolas