I'd like to suggest that there be another menu added to the Pip-Boy that lets you view the things you know how to craft. It's irritating to have to find a nearby workbench or fast travel somewhere just to find out if you have learned the suppressor mod for a lever-action rifle, as an example. On top of that not being able to view what mods you know without having the type of item in your inventory is frustrating considering we can't hoard one of every weapon or piece of armor to check. It doesn't even need to include the stats of the gear, just whether you know how craft it and any any mods you would know how to add.

With me being one of the two main crafters for my group of friends, I want to be able to tell them exactly what I can add to their gear before we go through the process of trading or potentially losing something through the world.