Because some people might not like the idea thatwhy did you wrote a warning
CSBwin is not 'True' to the original. If you don't
mind deviating from the original behaviour (probably
a crash) then ignore the warning. If "You don't like increasing
the maximum" then stop the program without saving.
Right now you can have about 8000 monsters in the game as
a whole. This is a compromise that balances with the fact
that you can have only 65000 objects in total.