work with multible units

[tir38]

I previously created a titleblock in inches so I could configure it properly with my printer/ paper size. Now I have created a model using milimeters. I understand how autocad uses "decimal drawing units" and that I am not really using milimeters or inches. However the width of my title block is 10 units (inches) and I want to create a 1:2 scale viewport of my object which has a width of 160 units (millimeters). It doesn't help to change the units in the model space or in the paper space. Can I set the units of a viewport (in paper space) independent of the objects (i.e. my titleblock) in the paperspace?

thanks,
jason

[edit] i'm using autocad 2006 mechanical [/edit]

[Spageddie]

You would have to allow for the conversion factor 1:25.4 when calculating the required viewport scale