When you drag any one person between databases...a dialog opens up... choose <Let me select people from a list>
An alpha-sorted list of everyone in the database appears with little checkboxes to the left of their names.
Clicking upon the empty checkboxes places checkmarks within to signal to RM which individuals to drag across between files.
Use the buttons above to aid in navigating, finding and marking (in this case, just the two married spouses).
Tools->Merge may need to be run as a followup, if you have dragged over people from the source database who were already in the destination database too.
--- "GENEALOGY, n. An account of one's descent from an ancestor who did not particularly care to trace his own." - Ambrose Bierce
--- "The trouble ain't what people don't know, it's what they know that ain't so." - Josh Billings
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