Beacon, I think (I'm not 100% sure) that this capability was introduced with software revision 3.40, which was just recently released.
Check to see what software version you are running on your GPSR (press MENU, INFO, SYSTEM INFO), if it is less than 3.40, try upgrading the software (it's a free download, and easy to do), then fool around with it and let us know what you find.
Here's the link to the Garmin free software downloads:
Software Updates
While you are at it, I recommend you download a free copy of the newly revised (and
entirely revised, I might add) User Manual for the SP 2610. This manual describes all the changes and additions to the GPSR software that have been made since version 2.10 (the original release) and is complete right up to and including version 3.40 features.
You can download the new manual here:
SP 2610 / 2650 User Manual, Revision B, April 2004
PanEuropean