If you are using grey layers or grey classes to make stuff go transparent in your viewports, you might find that the printed drawing doesn’t suit you. In VectorWorks you have no control over the grey colour in grey layer and grey classes.

You can switch the classes to grey, but I don’t like the results much.

But there is a better way. In viewports you can edit the class attributes to have the grey colour that you want.

Find the viewport you want to edit.

Click on the classes button to open this dialog box.

Select the classes you want to edit.

Edit the colour, line weight and line style to suit.

Notice how much better the grey lines look now.

By changing the class overrides on the walls, I can make the drawing better still.