Drop menu

The drop menu is the menu where you can select which items should have which chance to be dropped. You can also select some additional restrictions.

Buttons

Items to drop

The 'Choose...' button on the right of 'Items to drop:' will take you to the output table menu. In that menu, you can choose which items should have which chance to be dropped. Note that at most 1 of the entries you choose can be dropped. If you want to drop more than 1 type of item at the same time, you will have to create multiple mob or block drops.

Items that must be held/used:

The 'Choose...' button on the right of 'Items that must be held/used:' will take you to the custom items selection menu where you can select which items the player must use in order to be able to get this drop. To give an example, the following will happen if you select only a ruby pickaxe (a custom item):

If this drop is for a block drop (for instance for the block stone in), this drop can only happen when some player breaks a stone using a ruby pickaxe.
If this drop is for a mob drop (for instance for zombies), this drop can only happen when some player kills a zombie with a ruby pickaxe.

When you select multiple custom items, the drop can happen when a player uses one of these custom items. When you don't select any custom items, the drop can always happen, no matter what items players use. If you select a custom bow and this drop is for a mob drop, the drop can also happen when a player shoots the right mob to death with that custom bow.

Allowed biomes

The 'Choose...' button on the right of 'Allowed biomes:' will take you to the allowed biomes menu where you can configure in which biomes this drop can happen (and in which biomes it can't happen).

Prevent normal Drops (not for custom blocks)

If this checkbox is checked and an item is dropped because of this drop, no normal items will be dropped. (If this drop is for a zombie, no rotten flesh will be dropped. If this drop is for stone, no cobblestone will be dropped.)