Custome Trees Option

So instead of just having to make semi custom trees for biomes, I thought it would be cool to have an option for custom trees. It would work like this:

First, you could choose from ANY of the vanilla trees or upload a schematic with up to 4 block types. Then, with the vanilla trees you can disable leaves, vines, and fruits, and choose custom blocks for all of them. You can do the same thing with the schematics too, but you can only use a few blocks, and they have to be different. You should also be able to add multiple schematics for variations of a single tree.

Next, you choose a name for the tree, which probably would have the same name as the wood, so you should have a button to automatically set the name of the wood to the name of the tree. You can also choose a sapling texture for the tree and how long it takes to grow.

If this happens, in the biome tab the tree section would have to be a little different. Basically, now you can choose to add custom trees or vanilla trees to the biome, you can add a combination as well and can add as much as you want, and change how rare each one is. 

I just think this would be cool and a nice feature, although it doesn't have to be added, it would just be nice.