Like all other products in the ReSharper Ultimate lineup, dotCover gets its set of improvements in the 2017.3 release. Let's check them out.
Improved Show Covering Statements action
Before 2017.3, after you used Show Covering Tests (Ctrl+Alt+K,T) in the editor, the popup window showed a list of covering tests. However, it didn't tell you what exact part of your code was covered by these tests: a class, a method, or a particular statement. Now, the popup shows this explicitly, and even highlights the covered statements in the editor: