I would like to see the option that when I am adding orders to my production line, I can assign what value each created unit will have after production. This would give the option for us player who calculate our productions cost can better keep track of the value of all units produced.
Say I produce 5 unit of FE, I could either leave an optional value field empty and the produced units will have a 0 value as it is now. Or I could assign say my own estimated unit cost, how I come up with that value is totally up to me, but that would help me keep track of the average value of my stock, since there is no distinction between produced items and bought. If I produce 5 units of FE, valuing them at 150/unit, and i buy 5 more units for 250/unit, than my new stock average would say 200/unit.
This minor addition I think would be a major quality of life improvement, because now I would not need a permanent spread sheet to keep track of my production cost and prices.
Does this suggestion sound too far fetched?