Using Home Designer 22. lalying out my home. home has a froint porch, wiht a handbuilt wheelchair ramp. porch and ramp are made from sections of the original decking that came with the home. I've created a "stock" 2x6 in my library. Attached to the main porch deck, I have a perpendicular 2x6 which begins the downslope for the ramp. how can i ed the mating end of this 2x6 so that it will represesnt the proper decline/incline?