It would help me a lot, as an author of a mod that has to know about item names from other mods, if I could point users at your mod and tell them to look for the items there and either write them down or send me a debug log with the names. So either an option to display the internal name for the current item or an option to log it to a text file (or both) would be really great, and I guess it would help with other tasks like using console commands or searching using internal name search in FNEI itself.
FNEI mod is more often used by ordinary players than by developers of other mods. Therefore, loading a mod with such a functional may have a bad effect on mod performance. Recently, and so complain that the mod is unstable with a large number of mods.
1) The mod has debug mode, which I turn off by default (in core/debug.lua). It displays in the log any information about clicking on the mod interface. Therefore, you can click on the necessary prototypes/recipes and watch/copy them in the log.
2) You can create a fork mod and insert your output into the log or edit the mod to suit your needs as you like. I can help you figure it out.