properties of objects

if I've some objects in a drawing. each one with its elevation, radius,
position, extrusion etc.
how is it possible to access what its values for these parameters are?
If I click on the object and I look at its properties they are not all
listed. and if I execute "list" they are not shown either.
is there a way to see what this values are for each object?

regarding extrusion:
is there a way to modify how much an object was extruded (without
ctr-z)?
mike

 

Regarding extrusion: Use Offset face from the edit solids toolbar or type
face, then choose the offset option. (Enter a negative value to decrease
extrusion height). You'll be prompted to select a face and generally,
you'll get two in the selection so you need to remove the one you don't
want.

Pete
..