I've crafted a spell book, loving the plugin so far, but I wanted to get rid of the spells from my hotbar for a time as I discovered right clicking in the spell menu would grant the cast for most of them. But when I tried to get rid of them, they sad in the spell book, taking up space, not disappearing. two magic missile level 2s now exist in the spellbook, a duplicate pull, and a duplicate recall.
It is only upon writing this that I discover I may be able to get rid of them from the creative menu, but alas, this is not a solution for the general public of my server who do not have creative privileges .