You can use the following special characters within the USM Group Filters.
- % : A substitute for zero or more characters
- _ : a substitute for a single character
- [characterList] : Sets and ranges of characters to match
- [!charlist] or [^charlist] : Matches only characters NOT in the brackets
Note; these will only work when the filter operator is a "contains", "starts with" or "ends with". It will not work with "is" or "in".