Help with exiting chained battles PSX version

[whiskey]

Hi everyone,

As I'm not yet very familiar with the specifics of game save modding, I hope that this is the right place to field my question. Suppose one wanted to exit a sequence of chained battles to return to the world map when this is otherwise disallowed by the game. What are the ways one might go about this? Are there methods which are, in the absence of specific hardware or expertise with in-game editing, less invasive than others? Can a single save be regressed to an earlier time in its history? As before, I'm not sure this sort of thing is possible, but I've been impressed by the kinds of alterations others have described here on this site. Thanks for any suggestions.