Please note:
How trees grow is based on where you take your schematic. If you are using world edit
Stand on the block you want the tree to grow from then use //copy
Ex: I want my tree to grow from the middle center so I should go to the center bottom of my tree then run the //copy command from there after selecting my region.
How to use:
Ensure WorldEdit or FAWE is installed
Drag and drop tree schematic files (or any schematic files) into the Schematics folder.
Create your sapling item in saplings.yml use any kind of growable item for the material. (Saplings, mushrooms, etc.)
Reload the plugin with /customsaplings reload, then get your sapling with /customsaplings give <sapling>
Plant your sapling and watch your custom tree grow!