How about a number of items that, when used, execute a custom script? The language of the script would be similar to (if not exactly the same as) freeform combo script. With the right knowledge, any kind of item would be possible! And then, once you're done scripting the item, all you have to do is add it through the subscreen editor.
Scriptable Items
Let's just say we aren't stopping with just FF Scripts 😊
Thanks for confirming it!