It would be nice in the info section of each crafting material to see what it can be used for.
Welcome to the forum.
There are lots of places to find this information. If you have a Line, I can invite you to a great place for E&P information. Is this what you were looking for ?
Think the OP was after the inverted table.
So Crafting items on the left and in the columns a list of what battle Items make use of that crafting material.
Similar to this one I made for Puzzle Combat (Note it is NOT for E&P)
Exactly, would be nice to have it the other way around directly in game.