Is there a way for viewpoint to automatically draw a selection box around an instance when a user clicks on it?

THX

hi florin
for your question there is a very simple way to solve it. use a mtsplane object and apply a texture of .swf file through the mtstimeelem type swfview. and make the hasalpha for that texture declaration to HasAlpha = "1" .Now in your interactor mouseenter and mouseexit call a javascript function as ment() and mext.
in the ment() function enable the plane object
by using clps ="0" property.
And in the meext() function disable the plane object by using clps="1".
Initially the plane object must be collapsed ="1" so that initaially the plane object is hide.

This is the very simplest way for bounding enable.
In order to enable this bounding box to all of the objects . You have to write all the objects mouseover interactor and pass the x y z parameter position of the particular object to the ment() and mext() functions .Then assign the same position to plane object.

This will work as you like.
if u have any more ideas other than this pls intimate or if you have any confusion still
send message.

regards,
JPoint