SurfaceInterval allows you to combine multiple log files into a single log. This is especially useful if you use your laptop at a dive location, and wish to later merge the recorded dives into your main log located on your desktop computer.

In order to use the Merge function, you must fist open one of the log files. This will typically be your master dive log located on your desktop. When you select Merge... from the File menu, you are presented with the standard file dialog. Navigate to the SurfaceInterval log file containing the dive entries you wish to merge into the currently open log, and hit the Open button.

SurfaceInterval will merge the dives from the selected log file into the currently open log, while honoring the Duplicate Handling rules set in your preferences.