When the ect gets above a certain point it enters hot mode pe fueling. Say your temp gets to 220( example) or better, the factory enters different pe mixtures then a normal ect. Usually richer to help save the engine. The tables you are modifying all have descriptions on what they do. Like hot mode pe, the desription is right there to read and know what it does. As far as lean cruise do a search its been covered tons over the last few years.