I am considering the Home Designer Pro 2015 version and hope someone can answer this question...In the Accessibility Ramp category, it states that ramps are by default, set at a 1:12 slope to a maximum height of 30" (760 mm). I'm wondering if that default value can be changed. My specific requirement is to place a ramp from the ground to an elevated garage (in a flood zone) for a vehicle. The elevation will be about 10 feet from the ground to the garage floor. If the default value of the program's Accessibility Ramp cannot be changed then I wonder if someone has a suggestion on what tool I could use to draw the ramp I need to have for the vehicle.