Placing reinforcement for a bridge deck

Hello 

I'm facing an issue with placing reinforcement for a bridge deck. After choosing Slap Reinforcement in the Pro Concrete and adding the bar information, the reinforcement goes only to half of the slab, as shown in the picture. How can I fix this and make it go through the whole deck ?

Another question If I want to place another size of bars in between the other bars I already placed. How can I do that?