Quantity Select from GC Vendor

With the large quantity of mats we are purchasing from our gc vendor for airship construction, it would be most helpful if you could add in a quantity selector to the gc materials vendor. I just had to purchase a rather large quantity of coke, peacock ore and hardened sap by clicking and having to confirm each individual one...

Thanks!

yea bought 99 cokes for BSM... twice one day
takes forever