When I open my roster file with the BrawlEx Config Utility, I can see the data, but I can't change anything. Is it a bug of some sort? Or am I supposed to modify it through another means?
The CSS roster is basically an easier way to setup your character selection screen without the need for css codes to my knowledge. You should be able to modify the id's to choose the order. So if you want mario in the first slot on the character selection screen you would type in 00 in the id because 00 is his id number or say you would want pit it would be 17. On the first page their are tutorials on how to make the extra character slots you can add to the character selection screen so that it actually chooses a new character rather than it freezing. (I think their are newer videos somewhere on that persons channel that might be better)