Exactly. It would be great to have these to get/set WPF attached properties. For Example, instead of writing this:

DockPanel.SetDock(btn1, Dock.Left);
DockPanel.SetDock(btn2, Dock.Left);
DockPanel.SetDock(btn3, Dock.Left);

You would write this instead:

btn1.Dock = btn2.Dock = btn3.Dock = Dock.Left;

Much cooler Cool