Can you please explain what you mean by forward to another address? Do you mean NAT (changing one address for another) or do you mean using a different gateway or forwarding path?
For the former you're in the right place, but you need to select a match condition and an action. The match will be what address you want to change from, and the action will be what you want to change it to. What you have at the moment is simply matching TCP traffic with a source address of 188.8.131.52 and a destination of 184.108.40.206, but on its own this won't do anything. If it's the latter, there are various techniques to use depending on the current topology. Tunneling is probably the easiest to set up.
If you can provide more info I can probably help a little better.