Please check the youTube video for a how-to explanation. 

The addon supports fnmatch - filename pattern matching, which means wild cards like "*" or "?" can be used. An example is this:
object name:  plasticRed_SUB

plastic*: all objects which start with "plastic" get the the rule assigned

plasticRed_???: all objects which start with "plasticRed_" and have three more characters after, get the rule assigned