This is a great feature for line chasers and databases maintainers and is available only in the Pedigree Explorer 5.2 edition, not BreedMate 5.2. It essentially shows the differences between your current database and another selected database and provides an interactive ability to merge selected (or all) records or copy/edit data in either database.

To use it, select Merge View from the View menu then click on Open File To Merge and select another databases to compare to your currently open database. The view clearly shows the differences between the two databases in terms of what records are completely new in the selected database and what records differ only in certain fields. 

Records from your current file are in plain white with light grey text, while records from the merge file are colored in light red with black text.

New records  have a red color  in the first column, i.e. the record exist in the merge file but not in your current file. 
Changed records have a green color in the first column. The actual fields which are different are also marked in green.

 Check out the screen snapshot below:

Note that the data from the selected file is not added to your current database at this stage. The usual drag and drop feature also works in this view so you can copy data from one cell and drop it another cell.  This provides a convenient means of copying selected data from the merge file to your current file.

A range of records can be merged by selecting the first record in the range, then holding down the SHIFT key clicking on the last record in the range, then clicking on the “Merge Selected” button on the toolbar. Note: only selected records from the merge file will be merged – records from your current database are ignored.

The Navigator also works in this view so it is possibly to “find” any record by double clicking on the name in the Navigator.