Exposure, Color Tinting in studio so we can fix mistakes without making another preset

I know I may have suggested it in my lense creator application, but I think it would be cool if we were able to change the exposure on lens studio in case the filter doesn't look the way we wanted it to.  I'm fairly new to creating lenses but it's a lot of fun, but it is a bummer when the preset looks great in Lightroom but when I move it to snap in real-time it's under or overexposed.  If there were small settings such as exposure near where the alpha slider is I feel like that would reduce the time of correction in lightroom since we don't know how it will look in real-time.