The ability to display alloy recipes from Tinker's in the books. This is an example in my pack using Terrasteel, a custom melted dragon egg fluid, and Vibranium from Taiga to make a metal.

You can write your own custom Template Processor in the code to support this. I think Vazkii doesn’t have interest in supporting other mods natively, but he provided an API so mods can write it themselves.