Different Sorting Layers/Order in Layer breaking batching

Unity Engine
1

I have enemies made of different “parts”(hands, feet, body) and I managed to make some of them draw in batches. These objects are separated in 3 Sorting layers and Unity is taking up one draw call for each sorting layer.

Is there any technique to prevent this?

2

Just found out what the problem was.
I had a skinnedMesh in order 5 or so that was breaking the batch order, resulting in 3 Draw Calls per object.
I had to remake animations from scratch without using bones and added all objects to the same sorting layer, saving up hundreds of Draw Calls.
Order in Layer doesn’t hurt batching, Different Sorting Layers do.