As the title states, I have merged two existing working versions of a track. I had an old layout Nat and a new layout GP. Now I have the new corners from the GP merged to the National version. Now I need an AIW for the newer merged Nat version. Will BTB Evo load the completed track and allow me to make/edit the AIW to match the newer layout? Most of the Nat is the same except for a few of the last turns...