I have just combined two raster projects into a user map, but the depth colors do not show up on the project work screen, only the contour lines. I tried the edit windows for Isobaths and contours, but still no color between the lines. The projects did use a custom AT5 palette. The colors showed up fine in the projects. Only when I did the "write to file" and exported to a new user map did they disappear. The shorelines, islands, and contour lines displayed fine. Any ideas to what might cause this?

User maps only show vector components, so you would need to generate isobaths and add those to a map if you want to combine depth colours.
If you want to combine multiple raster areas into a single AT5 map, then at the moment you have to export the rasters separately (either flat rasters, or shaded relief) and then run the IMC raster process by hand. This isn't as difficult as it sounds - let me know if you need more information.

Thanks Matt. I was going to try and use a user map to combine projects so I could see the colors all on one map. I still can't display color depths on more than one map with shorelines on one card. The shoreline and islands all show up though. The HDS only shows one of the projects in color, the rest of the projects have only lines, islands, and the shoreline. It must have something to do with the GE shorelines or islands, but I've tried changing/adding/deleting every variable I can think of over the past 10 days. Color on one map, just the lines on any remaining. Any one of the maps alone on a card will show color, islands, shorelines, and contours though.

It was showing the colored contour relief all on one card before I added the shorelines and islands.