https://i.gyazo.com/097063f746af5fa401ef7b80d50c85cc.png 1) Download WBT FMM and a modpack 2) Open WBT FMM and click Select Modpack 3) Select the modpack you downloaded that is WBT FMM Compatible. 4) Click Imported Selected Modpack 5) Play Factorio c: SImple And Easy To Use!!! Download: https://ima...

I say instead of placing the belts on the underground belt just be able to place a belt on one side of the underground and it automatically replaces the full length with the belt. Some QOL researches like Inventory Size, Crafting Speed In Inventory, Etc...