Well you can edit setting.json in data/config to add organics to be a convertible commodity by editing these lines:
#UseExtraCommodities can either be set from 0-whateverasmuchasyoulike. If it's, 0 it will not detect any extra commodity to convert.
"UseExtraCommodities": 0,
#Here's a list of all the commodities: organics,volatiles,ore,rare_ore,rare_metals,domestic_goods,organs,drugs,hand_weapons,luxury_goods,lobster,alpha_core,beta_core,gamma_core
"ExtraCommodities0":"rare_ore",
"ExtraCommodities1":"organics",
#ExtraCommodities0, ExtraCommodities1, ExtraCommodities2, ExtraCommodities3, ExtraCommodities4 must then have text string that make sense or else it'll CTD!
#The cost should be more than zero or I'll get really mad.
"ExtraCommoditiesCost0":1,
"ExtraCommoditiesCost1":3,
#Not to mention you need to also put a corresponding Cost as well like ExtraCommoditiesCost2, and so on.
Personally I like to mine and am trying to add ore since I get so much of it and it is basically raw metal but each time I fiddle with the settings I cannot seem to get it right, maybe someone would be kind enough to go over a bit more clear for non modders how to add commodities.