Space to add a new loot table. Use this setup to make it: EnemyName-item(number) item(number) etc... The number is a pick random block, so you'll have to convert it from a percentage (100 divided by the percentage) A to get the loot and drops from an enemy.
HOLY COW did this hurt my poor brain to make. I did 6 hours of summer gym today, played some Beat Saber for an hour (expert+, in case you're wondering), and then started to work on this. I'm surprised I managed to do it, but it's done! For forum help.