multiple attacks

Well i'm stumped here, and I really dont know why this doesnt work.

I created a custom tower, with the intent of having it do more damage to air units than to ground units. So, I set attack 1 up to have ground as its legal targets, and attack 2 to have air as its legal targets. I then set it to use Both attacks. The only difference between the attacks is the targets and damage. Yet - when I run the map and build it, it only has one attack, dealing attack 1's damage values, and attacking air and ground. It could actually be working, but if it was, wouldnt I see two attacks on the HUD (like with the Chimaera?)

change the dmd values, and dmd type ,then try it.