Finding centre of group of objects

Question

Hello, sorry to bother you. I've got 6 objects grouped. Illustrator draws a
box right the way around them all. I would like to make a circle whose
centre is the exact centre of this box.
How to find the centre of a group of objects?
I have managed to do this by dividing the height and width of the box and
adding the offset etc., but this seems a long way round. Smart guides isn't
helping.
Any simple way of doing this?
Thank you,
Ariel
Illy CS2 XPSP3

Answer 1

I'll tell you what's going on here. I use InDesign much more than Illy.
InDesign seems to do one very simple thing that Illy doesn't: it allows you
to snap to the centrepoint of a group. In Illy that centrepoint doesn't even
get a GUI representation it seems. So my instinct to do this was the ID way:
snap the ruler to the centre point, draw a circle anywhere and type in 0,0
as the coordinates for the circle's centre point. Basically as fast as
aligning (which in InDesign is slower than Illy because you have to lock one
of the objects). But of course this is impossible
When that failed, I tried to snap two guides, and again Illy lets you down
where ID succeeds. (In InDesign guides snap to all the control points of an
object's bounding box, but not, it seems, in Illy.)
I guess at this stage I lost hope that Illy actually knows where the centre
of a group is, and so I headed off to the forum lol.
However, both suggestions are sensible. Thank you.
FEATURE REQ.: Add a snappable GUI representation of the centre of groups,
like in InDesign. Also, make all control points snappable to, like in ID.