How to use the Dimensional Preview Window

Dimensional previews are available only with the variant models (design variations) provided in some Magna-Catalogs. These previews provide clarity as to what values apply to what dimensions. This is typical found with parametric parts. 

Quite simply, if you cannot see the dimensions in the preview easily, then you can simply click on the preview window to enlarge. Click the Exit button on top right to close the enlarged preview window when finished.