Channel Tools is a VST plug-in bundled with SONAR. Pretty sure it was part of SONAR 8 Producer.

The concept of panning, in the conventional sense, has no real meaning when it comes to reverb.
 
A reverb plugin emulates a natural acoustical phenomenon: audio bouncing off walls. In an acoustical setting, that means delayed versions of the sound arrive at your ear from many directions, including the opposite side from where the original sound emanated. To simulate this with artificial reverb, the processor applies random panning to each faked "reflection". You can usually control how much of this effect is applied, via the reverb's "width" setting.
 
Panning is therefore an intrinsic function of the reverb unit or plugin. You can mess with it after the fact, but you're really just defeating part of the overall effect. There are legitimate reasons for doing so, but not many.
 
For example, if your reverb plugin lacks a Width adjustment you might want to narrow or widen the reverb tail using M/S processing (that's where Channel Tools comes in). I sometimes use an autopanner or chorus on reverb as a special effect. I've also used a pair of mono reverbs, hard-panned, again for special effect.
 
But for the most part, reverb usually works best when you just let it do its own thing with the panorama.

bitflipper
But for the most part, reverb usually works best when you just let it do its own thing with the panorama.

You are limiting yourself in a way thinking like that.  There are no rules.  Yes most of the time returning reverbs in stereo is good and works for sure. eg important parts eg vocals etc..  But as I said I have had a situation where making a return mono and panning it one side with the source on the other actually worked better and that part became clearer/louder as a result.  Then I was able to turn both the part and its reverb down a little. Maximum illusion, minimum voltage.  If something like that works for you then do it, simple as that.
 
It is a bit like panning 3 stereo synths to the same L-R panorama.  Sometimes that does not work so well either and you can get a better result by using something like Channel Tools, narrowing the stereo outputs down a little and placing them across the spectrum.  eg L-C, 10 O'clock-2 O'clock and C-R
 
Nothing to stop you doing the same approach with reverbs either.  Any decent reverb will mono down very nicely. 

Jeff Evans
sharke you actually should read some previous posts.  I have covered that concept already. Then you can save yourself some time repeating what has already been said.

Ooo the snark! To be fair though, you talked about narrowing a stereo reverb image, not making it mono.

You probably don't read manuals either LOL! Narrow it down enough and you get mono in the end.
 
For many years all I could afford was that Yamaha R1000 which is a total mono reverb.  (note Bit, the very first Yamaha reverb ever was totally mono so your stereo panorama theory does not hold up there)  And yet it actually sounds very good.  I used to find ways to make it wider by doing the delay thing on one side and using stereo imaging eg an old Roland Stereo Flanger  (SPF325)  which had a rather nice Chorus in it and also Dimension D.  I became quite expert at using a totally mono reverb.

Even if you're saying the same thing as another poster but in a different way, one might be easier for someone like me to understand while the other post might just confuse me more than I already am. There's room for everyone.
 

soens
Even if you're saying the same thing as another poster but in a different way, one might be easier for someone like me to understand while the other post might just confuse me more than I already am.

If this wasn't true, then the phrase "in other words..." would never have been invented 
 
The funniest example was in a thread where three people answered at almost the same time and said almost the same thing. Talk about consensus!

Your potentially interesting but more or less useless reverb factoid for today is that there are very few stereo reverbs. Most sum the inputs, then generate stereo reverb from that.
 

While it makes sense to search the forum in many cases, it is often not practical for someone to read through years of posts to see if there is an answer buried somewhere.  And when someone provides an answer in a new post—even if it's been offered before—a new group of people sees it and benefits.
 
And now, I will lecture on my views of geopolitical economics.