Likely not possible. The game likely has a hardcoded set of Travel Medallion slots reserved in the save data structure so setting the key item count for it beyond 3 won't work. (the game has to know where each medallion is on the map and obviously this means it has limited space to store this kind of information so they definitely hardcoded it to only keep track of 3!)
Likely not possible. The game likely has a hardcoded set of Travel Medallion slots reserved in the save data structure so setting the key item count for it beyond 3 won't work. (the game has to know where each medallion is on the map and obviously this means it has limited space to store this kind of information so they definitely hardcoded it to only keep track of 3!)