Tweaking Naming Style Rule Follow

I often use class/interface/struct names that contain multiple trailing capital letters, like IncExpSelectorVM.

Resharper, by default, does not like this :). It wants me to instead use IncExpSelectorVm.

I've read the documentation on naming rules and cannot figure out how to adjust the rules to allow my naming style. I can apparently add rules...but they have to be based on existing rules. Which I cannot find the documentation for. Just what does UpperCamelCase mean and how is it different from UpperCamelCase_UnderscoresTolerant? :)

Help would be appreciated.