So I just got very unhappy with the MCCreator. Because I just tried to create a portal with my own biome and that does not exactly what I want.
I first created biomes and executed about Diemnsion for Biome so far so good.
I have set up there only a mob spawning in this biomes, Nevertheless, there are all mob spared.
I have set the grass to be yellow, but still green
I have set that no trees should be generated there, but trees are generated.
in the 2015 MCCreator a user has also reported the same problem that all mobs are still generated although only 1 mob has been selected and 4 years later the bug has still not resolved.
So now I'm extremely disappointed and that's why I'm looking for a better alternative. For all those who would like to program Minecraft Mod, I would advise against MCCreator because you will be annoyed. I just feel so mad now.
There's no alternative, to my knowledge, not. Since you will probably have to clamp to programming. Download IntelliJ or Eclipse (most tutorials only show Eclipse) and have a look at some tutorials. Try to understand a bit and take a look at the basics of Java. Once you know them, you can watch more tutorials on programming mods. Not several at a time. That does not teach you. From time to time one or two videos and with the learned something "play around". You can also see the code at MCreator. He can also help you a lot in your project