Make the Layout vport windowing in Model space and get it in the Layout.
It is a dialogbox based program which let you define vport properties (any shape, scale, display, Layout tab) in very simple terms.
All is done automatically: switcing to model and paper spaces, zooming into the right display scale, as a dependency to paper units, activating the selected layout tab and display lock.
This program is for users that works with METRIC UNITS. Read MVPCEn.doc for more details.