@mill-j
My suggestions may be well beyond the purpose and scope of HatchKeeper. If so, take them with a grain of salt.
It may be that these things need to go into a completely different ap.
I currently use a notebook and an excel spreadsheet for the purpose.
I only raise one breed which is extremely rare, read that as having a small gene pool. Barring several trips to Spain, I have to work with what I have.
There are breed characteristics that are difficult to retain and improve but I'm dedicated to the process.
I weigh and rate egg color of every egg I set, track the parentage of that egg, That way I can compare fertility, lay rate, eggs size, egg color and vigor of the breeders and compare to all the progeny.
I don't really keep track of humidity like most people do. I use egg weights at candling to track proper humidity.
Perhaps a place for egg weight at a minimum may be helpful.