Battlefield 1 does not supports Multi GPU(S)

Recently Ea release an update which doesn't allow us to play battlefield 1 with Multi GPU(s).
Battlefield 1 does not supports Explicit Multi-GPU setups. Also, even if it did, the GT 740 would only give negligeable gains to the GTX 1060, or worse, make it slower, but you need not to worry as this is a well optimized games which can be played even on intel Hd Graphics 4600. 
The Ea said they are working on SLI / Cross Fire 

Here is the Recently tweet from EA