Can one manually resize an object proportionately?

[Stgoldberg at aol.com]

I have a very crude way of addressing the problem of trying to reduce an 
object manually proportionately.   One takes the vector line tool and draws a line 
starting just inside the upper left hand border of the image and dragging it 
to just inside the lower right border of the image.   Then you select the 
image and drag it along the line, thereby keeping the proportions.   After the 
image is the right size, one can erase the line. However, it does seem it would 
be much better if Revolution changed the scripting so that one can 
proportionately reduce an object simply by holding down the Shift key while dragging. As 
it is, holding down the Shift key while dragging changes the object to be a 
square, which doesn't seem all that useful.
Steve Goldberg