I decided to write some new smelter reactions to process ores faster. Each job now uses 5 ore to produce five bars. I also modded steel and pig iron making, to produce 10 steel bars at a time, and 5 pig iron bars at a time. Add the following to your reaction_standard. Note you will have to regenerate your world.
[REACTION:MULTIPLE_LEAD]
[NAME:smelt lead (from five ore)]
[SMELTER]
[REAGENT:5:METAL_ORE:LEAD]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:LEAD]
[FUEL]
[REACTION:MULTIPLE_ALUMINUM]
[NAME:smelt aluminium (from five nuggets)]
[SMELTER]
[REAGENT:5:METAL_ORE:ALUMINUM]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:ALUMINUM]
[FUEL]
[REACTION:MULTIPLE_BISMUTH]
[NAME:smelt bismuth (from ore)]
[SMELTER]
[REAGENT:5:METAL_ORE:BISMUTH]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:BISMUTH]
[FUEL]
[REACTION:PIG_IRON_MAKING_MULTIPLE]
[NAME:make pig iron bars (five)]
[SMELTER]
[REAGENT:5:BAR:NO_SUBTYPE:METAL:IRON]
[REAGENT:5:REACTION_CLASS:FLUX]
[REAGENT:5:BAR:NO_SUBTYPE:COAL:NO_MATGLOSS]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:PIG_IRON]
[FUEL]
[REACTION:STEEL_MAKING_LOTS]
[NAME:make steel bars (ten)]
[SMELTER]
[REAGENT:5:BAR:NO_SUBTYPE:METAL:IRON]
[REAGENT:5:REACTION_CLASS:FLUX]
[REAGENT:5:BAR:NO_SUBTYPE:COAL:NO_MATGLOSS]
[REAGENT:5:BAR:NO_SUBTYPE:METAL:PIG_IRON]
[PRODUCT:100:10:BAR:NO_SUBTYPE:METAL:STEEL]
[FUEL]
[REACTION:MULTIPLE_NICKEL]
[NAME:smelt nickel (from five ore)]
[SMELTER]
[REAGENT:5:METAL_ORE:NICKEL]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:NICKEL]
[FUEL]
[REACTION:MULTIPLE_ZINC]
[NAME:smelt zinc (from five ore)]
[SMELTER]
[REAGENT:5:METAL_ORE:ZINC]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:ZINC]
[FUEL]
[REACTION:MULTIPLE_PLATINUM]
[NAME:smelt platinum (from nuggets)]
[SMELTER]
[REAGENT:5:METAL_ORE:PLATINUM]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:PLATINUM]
[FUEL]
[REACTION:MULTIPLE_TIN]
[NAME:smelt tin (from five ore)]
[SMELTER]
[REAGENT:5:METAL_ORE:TIN]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:TIN]
[FUEL]
[REACTION:MULTIPLE_IRON]
[NAME:smelt iron (from five ore)]
[SMELTER]
[REAGENT:5:METAL_ORE:IRON]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:IRON]
[FUEL]
[REACTION:MULTIPLE_GOLD]
[NAME:smelt gold (from five nuggets)]
[SMELTER]
[REAGENT:5:METAL_ORE:GOLD]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:GOLD]
[FUEL]
[REACTION:MULTIPLE_SILVER]
[NAME:smelt silver (from five ore or nuggets)]
[SMELTER]
[REAGENT:5:METAL_ORE:SILVER]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:SILVER]
[FUEL]
[REACTION:MULTIPLE_COPPER]
[NAME:smelt copper (from five ore or nuggets)]
[SMELTER]
[REAGENT:5:METAL_ORE:COPPER]
[PRODUCT:100:5:BAR:NO_SUBTYPE:METAL:COPPER]
[FUEL]
They work off METAL_ORE, not STONE:rock name, so galena and tetrahedrite can now be used to produce 5 silver bars straight out. (Fixing this would mean about 4 reactions each for copper and silver, unless you want to change the matgloss for galena and tetrahedrite, but doing that would break individual smelting)
I chose 5 arbitarily, I haven't tried setting it any higher than that.
Multiple ores of the same metal can be smelted together.
I did a lot of copy pasting, I don't see any mistakes, but I may have told it to produce tin from zinc or something. Let me know if I did. I also haven't tested steel making, please let me know if theres a problem with it.