Revit Doors with Sidelight

[galmquist387974]

I'm having trouble changing the size of the sidelights on both sides of my door family. I attached the family. There is only one parameter showing the sidelight width when it's inserted in the project and when I change the size of it, only one sidelight changes. How can I make both sidelights change? I need them to be equal.

Thanks!

[PijPiwo]

When you apply the same parameter to both sidelights, they will change their size at the same time.