When creating a new class, you have to select the levels to associate it with. I have MANY custom levels. When it is time to select those to associate, by default, they are all pre-selected so I have to uncheck them. It would be much easier for them to be NOT selected to start with. The other part of this issue is that they appear on the page in such a way that there may be three or four on a line - not in lists or columns, not aligned in any way, and not in any particular order. I have so many, I find it difficult to pick through them to deselect the ones I don't need for the new class.