Extend/inherit printPreviewDialog

I tried to create a usercontrol that inherits PrintPreviewDialog in order to extend the basic dialog. After I just start with the blank control and add

Inherits System.Windows.Forms.PrintPreviewDialog

I can see the control in the design view, but all the properties are read only. I wanted to add to the toolstripmenu, but can't do that. Is this right? How should I go about it? I cant seem to make any changes to the dialog form. Any sugestions?