you can add this to data-final-fixes.lua
--tier 4
deadlock.add_tier({
transport_belt = "turbo-transport-belt",
loader = "turbo-comfortable-loader",
colour = {r=129, g=139, b=90},
underground_belt = "turbo-underground-belt",
splitter = "turbo-splitter",
technology = "turbo-transport-belt",
order = "d",
loader_ingredients = {
{type = "item", name ="express-comfortable-loader", amount = 1},
{type = "item", name = "iron-gear-wheel", amount = 40},
{type = "item", name = "tungsten-plate", amount = 10},
{type = "fluid", name = "lubricant", amount = 20},
},
loader_category = "crafting-with-fluid",
beltbox_ingredients = {
{"express-transport-belt-beltbox",1},
{"iron-plate",40},
{"iron-gear-wheel",40},
{"processing-unit",5},
},
beltbox_technology = "deadlock-stacking-4",
})
