In research and development it would be nice to have a filter too, options like a toggle select on values considering a lot of items share same cash values as well as a percentage filter to hide away high quality gear to avoid the accidental scrap. Lastly a type toggle to sort between armor or weapons. Lemme know what you think? 

For me and other players, hoarding is just who we are, having a little extra sorting ability would be a great quality of life enhancement.

To sum up what I am understanding, on the research and development page the following filters:

• A filter to only show items with a specific cash value.
• A filter to only show items less than a specific quality value.
• A weapon/armor toggle to only show items of one type of the other.

Does that all sound correct?

The cash filter seems weird to me, why not filter by name?

I could see a second feature here that is the ability to "lock" specific items and weapons in your inventory to prevent them from being scrapped, sold or traded as well.