Thank you for the kind words, Dany.
The software is still under development and we have more features planned to add, including the "merge" feature you mention.
However, please note that the original concept of the program (the old DOS version back in the 1990's) required it to be an accurate, up-to-date (and protected) database of dogs with known registrations and certifications that can be used as breeding stock. We made the provision for you to add dogs temporarily to the end of the database to create what we call "Possible Puppies" or "Experimental Dogs" so that you can analyze the results of mating various sires and dams. We did not originally intend that you would add a lot of dogs, as the whole concept is to have everyone supply their dog details to us, we will add them permanently to the database and make it available for
all to use via frequent updates. Because of this original concept, when you update to the latest database, your Experimental Dogs are overwritten. As we receive feedback from users like you, we may decide to re-evaluate this original concept. In the meantime, send your dog information to
info@bmdped.com and it will be considered for inclusion in the database (a web form is in the making to allow you to easily submit dog info to us).
As far as your marker idea is concerned, I would welcome your suggestions of how to "highlight" the dogs that appear multiple times without making the screen cluttered or confusing. If you, for example, were showing a pedigree containing 127 dogs and 10 of them ocurred repeatedly (in maybe 30 locations), how would you suggest we highlight them to tell them all apart?
Thanks for taking the time to write!

Dave