The adjustment can be done within the game itself, right? Don't need to go into the back and change the number?
I'm not sure what you're asking - if you want it to use a different variable, then you need to replace the "12" that I typed into the code before you include the plugin in your project.
If you're talking about the value of the variable...yes, you change it during the game with the Control Variable command. That was the point of your request, right?
I need balance it to where the player doesn't think killing 1000 slimes will get them to a OP lvl. There needs to be a lock per chapter to create balance.
To be fair, there doesn't have
to be. Most games (including RPG Maker) use a progression of experience per level that makes it inefficient to do that - why would someone want
to go around killing 1,000 weak enemies to gain one extra level instead of just moving to the next area?
My other observation would be - what does it harm you? You've made the game, you've balanced it the way you like, how does it negatively impact you if your players want to grind for extra levels or do a challenge playthrough with no weapons or...whatever?
If a player thinks doing that makes the game easier, and that experience is what they want, I don't see the point of you trying to control their gameplay.
But regardless, this should do what you want