The litle thing that's in the midle of the primary and secondary buttons of some (not all) computing mice. :-)
>What's a mouse wheel? ;-)
>You can also click with the mouse wheel (or similar) to get the same results..
>
>Hope this helps
>
>>Al,
>
>>>Thanks, Sergey. I'd rather avoid 3rd party extensions but I might look into it later.
>
>>Then use the Control-Click method. No extensions needed.