I could not find a way to make reference planes appear in a draft drawing. Is this possible? (actually, I want to make only one specific plane visible from an assembly, and use it for adding dimensions).
Yes, you can do this. Right-click on the drawing view you would like to display the plane in. Then right click on the solid body/part that contains the plane and select "list reference planes". Select the plane you wish to show and tick the show box. I believe you have to update th eview, but it should then be visible.