Now to get a block you need to use the command /bdc custom-block give <custom block name>

Added the ability to set custom block parameters directly from the game by adding arguments to the command

/bdc custom-block set <custom block name>

central-material <material>
interaction width <width>
interaction height <height>
interaction command <command>
item material <material>
item name <name>
item lore <lore>
item enchantments <enchantment> <level, def 1>
item item-flags <item-flags>