EZMetrics 3 Plug-In Updated For CorelDRAW X6
It has recently been updated to work in both the 32-bit and 64-bit versions of CorelDRAW X6. That's in addition to CorelDRAW X3, X4 and X5. If you haven't yet tried it, a free 14-day trial version is available.
Create an orthographic view of your artwork and then click the icon representing the view you want on the cubes in the interface. If you want specific angles, you can even create your own custom views. Once in a view, you can extrude the objects in that same angled view by entering the extrude distance and clicking any of six directions. Objects can also be moved in that view plane in those same six directions.
At the bottom of the dialog are a list of transformations and you can undo those transformations as desired. The best way to learn how it works is to give it a test drive for yourself.