Okay, full sentences. I will start from the beginning.
I acquired the script and inserted it into the required area, above the ( Insert here) area, underneath Materials and above Main. As instructed. I have it directly under materials, under the requisite script, the eponymous Class System script. It was, of course, Yanfly's handiwork, as is the script that I am having difficulty with.
In order from Materials to Main, these are the scripts that I am using, all of them by Yanfly.
Class System
Class Unlock Level (I.E. The problem script.)
Class Specifics
System Options
Adjust Limits
Victory Aftermath
Ace Battle Engine
Steal Items
Classical ATB
Enemy HP Bars
and the Core Engine.
Main, of course, is directly below that.
Now, when I had stated 'Test an idea', I meant, I was experimenting with that particular note tag, attempting to get it to properly work.
I had typed the notetag, in the proper spot, with the correct syntax shown both in the script and the webpage shared in the prior posts. The webpage shows exactly how it should look and both it and the script were exceedingly clear that the purpose of the script is to prevent the player from being able to use that specific class until a certain level is reached. (And yes, I am well aware of the parameters for that unlocking. As stated before, I was testing the script out to see if I could get it to work. I have an event that gives the player character enough levels to trigger the unlock.)
However, whenever I playtest, whenever I give said character all the classes to choose from, that singular class does not lock. The script does nothing, and no matter how I write the note tag, I am unable to lock and unlock it at will.
Again, I stress that this is early project stuff, I am getting the parameters of the items and classes and stuff figured out while I work on the world map, the semantics of when the classes will be unlocked and whatnot will come later as I work out the game. This means that, currently, when I want that class to be available is not even remotely on my mind as of now, I just want the script to work, to allow me to lock that red mage class so that later, when I am at that level of completion with the game, I can decide what levels would be proper for it to unlock, based on how long I make the game.
I apologize if I sound exceedingly rude, because to me I'm trying to get it to function properly, and you're worrying about trivial matters, such as when it will be unlocked and wondering about an idea that I had explained in my second post. To me, this seems like needless nitpicking. Again, I apologize if I sound rude.
If it seems like I overexplained this, it's because I don't want to waste time answering questions that might come up because I was not specific enough, a trait in which, bafflingly enough, people get bent out of shape over both on the internet and IRL.