I keep track of my hops by putting the crop year in the hop name box. Example: Chinook, 2018 or Cascade, 2019. Just go to ingredients/hops, copy and paste the entry for the hop, enter or change the crop year AA% and price/unit as needed, and you're done. If you bought from a different vendor, change the source to that vendor. When you deplete your supply of a listed hop, simply delete it. It's a lot easier than making new entries every time you buy hops, and does everything you are asking for with the same amount of effort.
If you don't know the crop year of the hops you're buying, which you definitely should, just substitute the month/year when you purchased them.
The same basic method works for grain and yeasts.