Setting correct lot multiples


i have question regarding setting the multiples for lots to be accepted by c2

My MT4 generates orders of size in decimals but c2 accepts no decimals

To get my order with size 0.04 i need multiple it by 100

But it is not proper size for my strategy. Because if i lose next order may of size 0.20, so it wont be accepted by my c2 balance (20 lot !)

so how do i solve this.