Edit Across Layers

Not sure if This is the way it is supposed to work, but i am using a the Guides layer in CorelDraw X4 to create a rough structure for hand drawn work (using a wacom), and no matter if i have edit across layers selected or not, i can still edit the guides layer when working on my main work layers..... is this how it is supposed to work? The only option I have is to lock the layer.