Well your question is exactly why my Alchemy Mod only allows two items by default. If you allow three items, then you face an issue: Should it be always three items, or it can be either two or three. The former makes the system inflexible, but the latter is hard to implement, and will take a huge amount of time to design and test. With the default Alchemy Mod, you dont have this two or three(or two, three or four) problem, it must be two.
Once Mys v1.4.0 is available, I plan to redo the Alchemy Mod to make it compatible with the new version(or as an addon/plugin, which I will explain once I make the plugin system). It will still by default handle mixing of two items only, but mixing multiple items may be made available as premium mod.
Also for questions directly related to the Mod, please post in its dedicated thread next time. Thanks.
http://mysidiaadoptables.com/forum/s...ead.php?t=4368