Is there a way to drop some diagrams?

Some are completely useless for me..

Thanks

There's an option to drop items from the inventory screen. Selling them would be a better option, though, if you're sure you don't want to keep them.

... Actually, do you mean the stuff that's listed on the crafting screen? I'm not sure if you can get rid of any "unwanted" items, once you've discovered them. I could be wrong, but is there an option to temporarily hide items from the list... ?

You can hide whole categories (trousers, potions, oils, chest armors, junk, etc.) but you can't hide specific items.

Diagrams are not in the inventory screen. Either that or I clearly don't see them there..

Diagrams show either on the Alchemy or Crafting tabs, automatically added upon acquiring them.

Obviously I know where they are shown, if I am asking how to drop them..