I was messing in Hammer the other day, and I was trying to make a cannon that launched an explosive gasoline canister. I was using a point_template hooked up to a button to tell it to spawn the canister when the button is pressed. The problem is that the prop_physics entity won't move with the cannon's barrel - it will spawn in the position it is at startup.
Is what I want to do possible in Hammer or am I up the creek without a paddle?