First of all: I *LOVE* this mod. When I scrolled past it in the workshop I said to myself "meh, could be useful at some point", and now I'm using it all the time. Might seem like a simple mod at first glance but is extremely powerful yet not hugely overpowered. A real QoL improvement. Thanks a lot for this!

That said, two ideas come to mind.

1. A checkmark: The four little indicator bars are useful to see how much is in a box roughly, however you can't see at first glance if the box is actually full and the order is completed. I've had it a few times that a few kgs were missing and I dropped/spilled it prematurely despite having four bars. I could imagine a little green checkmark on the box next to the bars, indicating that it's full and ready to drop/spill. Or, as an alternative, only add the 4th bar at exactly 100%.

2. Presets: Some orders you need over and over again. It can get a bit annoying of you have to select the same materials and same settings every time. I would love to create presets: "300g Oil, autospill", "200kg Visco, no autospill", "1t steel, autodrop", you get the idea. I don't know how much UI work a preset management would be, I'd be happy with a config file even and a simple selector.