Can I display (overlay) two maps in Mapsource 6.16.3

[psychoclime]

I have Mapsource 6.16.3 (WIN XP SP3). Is there a way to display two maps simultaneously in Mapsource. I thought at one time I had done that - may have been earlier version or different sequence of installation (a couple of HD crashes or corruption requiting reinstallation of everything).
Pretty sure I did at some point as I remember sometimes it got a bit confusing, but also useful as one map is missing roads in some counties, that exist in the other, also the overlapping of 50' contour lines w/ 20' ones was sometimes useful.

I have an etrex Vista HCx (I think the latest firmware) & seems I can with that.

[Indrid Cold]

No, MapSource will only display one at a time.