this is how mill do...
u will saw a MAKE ITEM 1 ITEMS
above the comfirm button when u manufacture...
u can change that from 1-50 (according to the result)
50 is the results...example u can only put in 25 for wood/firewood
then there's the making time...

u can go afk around that time and came back to see ur result..
u can make bunch of item without clicking it many time^^
this is easier...

-RED CIRCLE = Quantity of item u making
-GREEN CIRCLE = The Material of total quantity of item u making