need help with cheats on my GDEMU

[dreamcast459]

ok so i managed to find a working code-breaker cheat disk for my gdemu, when i select the code breaker it asks me if i wanna load a game with the disk. no problems there. but there is no way to add new games or codes for new games i can only seleect the cgats are are pre installed i need some input or some options as a lot of the games i have on my sd card are missing from the cheat disk

edit i tried gameshark but it didnt work im assuming i need to be able to select the game before loading up the cheat disk

[deluxux]

put gdmenu in folder 01 put codebreaker in folder 02 put the game in folder 03 and press the button on the gdemu to swap disc.