Is there a way in the online Monster Builder to edit the keywords of a trait? It's possible to do this for an attack, but I can't find the option for traits.
I couldn't find a way to add or edit keywords of traits. A workaround for deleting them (if, for example, the trait has been taken from an existing monster) is to copy the trait's effects, delete the entire trait, and create a new trait, pasting the copied effects.