I need to generate more than one boss in one world at the same time

[FelixYu]

Hi, I'm currently modifying core.cpk to meet the rules of the game my friends want, but I have a problem. I can't generate two boss with the same name in the world at the same time. I want to know which file I should modify to meet my requirements, or this requirement can't be realized at all?

[FelixYu]

 
There are other issues:
1. I want to modify the capacity of the backpack
2. When I modify the formula of the machine, how to display the formula content correctly on the client?
3. How to create an automatic detection mechanism?
4.I didn't find a way to reduce the damage to the player

and ... im a chinese player，All the above is the result of using translation tools. If I don't understand what I mean, I can also try to publish it in Chinese