I did not see that. The developer is on the record saying no multiplayer, though...
It would also help if you provided a savegame with repeatable instructions on how you are trying to use the option.
Help the guys with the info they need, and they will help us. Sent you a dropbox link to the GoG version of the exe. Let me know if you need anything else.
I did provide a save game in the other post but here is another. I also did provide instrusctions. I hit numpad 8 then tab. then closed my inventory and hit tab again. No change. I did 8 with the inventory open. then closed it and reopened that also did not work. I tried it in the trade window then sold something after hitting 8. No result. I used cosmos using your instructions however and it did work. I appear to be frustrating you and while that is not my intent I do admit I was being lazy by not doing it myself with cosomos and for that part I apologize.
Seems the super powerful option 9 even removes any need for currency as suddenly everything not gotten through the trade system is free and since I can make items at will money is easily obtained.
[Edited by Varacka, 8/12/2016 9:26:24 PM]