OK. This is what I did.
First, created new loot table (seen at bottom)
-- Then I added new loot drop ID - 120752, with MULT = 3 (so it does it 3 times?), and 100% chance to do it every time. Added 10 spells to pick from in the lootdrop_id each with a 10% chance of dropping
Did similar process with next lootdrop_id, except MULT = 2 (for 2 item drops?), and only have 5 items with equal chance of dropping
Same process except MULT = 1 (for one item?)