Hi Kevin,
The Stardraw libraries contain different symbols to represent products in different drawing Modules. Each Module is designed to produce drawings of different types.
In some Modules, e.g. Block Schematics and Pictorial Schematics, scale / dimensions are simply not a factor - the drawings are not designed to be 'to scale'; it actually wouldn't make sense.
In others, .e.g. Rack Layouts and Panel Layouts, the drawings are meticulously to scale, at 1:1, so that the physical dimensions of such drawings can be used for assembly and construction.
In Plan View, the supplied symbols are designed to represent the location of products in Floorplans and Reflected Ceiling Plans, but not their to-scale dimensions.
There is no Elevation module, so Stardraw Design 7 does not currently have a library of 1:1 scale symbols of products for use in such a view.
Regarding dimensions in the Properties Grid: if the selection has Height and Width properties then these can be edited so, for example, the Height of a Rectangle can be changed to whatever value you want. If Height and Width are not shown then the selection is a multiple or compound selection and its size can be changed using the Arrange | Scale command.
I hope this is helpful.