This summary is not the rule. The rule text controls.
Indiana used to have different types of lawsuits with different names and different rules, like the old categories of "law" and "equity" cases. This rule gets rid of all those separate categories. Now there is just one type of case for civil matters, simply called a "civil action." This makes things simpler because everyone follows the same set of rules no matter what kind of dispute they have.
The second part of the rule deals with situations where someone's actions break both a civil law and a criminal law at the same time. For example, if someone hits you with their car while driving drunk, that action might be a crime, but it also hurt you personally. This rule says you can still sue the person for damages in a civil case even if they are also being punished in a criminal case for the same action. The punishment for breaking the law does not cancel out your right to seek money or other help for what happened to you. You can pursue both at the same time, and one does not replace the other.