I'm making a shop for a SP world of mine and I'm using villagers to make it cool. I am using command blocks to summon villagers with custom trades. But how do I get them to have different saplings. I'm having trouble because in the command block you cannot do 6:1-5 like it is for other saplings. I can only get my villager to have oak saplings in his trades and the other trades he has are blank because it doesn't accept the :1-5 so how to I get like Spruce saplings and stuff in my custom trades???