The HL93 Live Load model consists of the truck and lane applied simultaneously, along with appropriate dynamic load allowance (impact) factors. This is how QConBridge approaches the problem, so there is no direct way to separate the truck and lane response.
However, there is a "trick" that you can use to "turn off" either the truck or lane load. The trick is to use a dynamic load allowance of -100% for the load component you want to turn off. Truck and lane responses are scaled by (1.0 + IM/100) where IM is the applicable dynamic load allowance factor. Using a factor of -100% the response is scaled by (1.0 + -100/100) = 0.0, which, in effect, "turns off" the response.
To modify the dynamic load allowance, select Loads | Dynamic Load Allowance... Enter a value of -100% for either Truck or Lane. Press the OK button and run the analysis.
Thanks to Dr. Harry Cole from the Mississippi State University for sharing this tip. (Go Bulldogs)