Custom memory size

[SkazochnikZlodey]

Hello,

Is it possible add custom memory sizes ?
something like:
#define EEPROMSizeATmega1280 4096
#define EEPROMSize4M 4096
#define EEPROMSize8M 8192
#define EEPROMSize16M 16384
#define EEPROMSize32M 32768