Allow a test project to be excluded from creating inline code coverage
Inline code coverage is great for unit tests, but when integration tests are also instrumented we lose the granularity of coverage.
N.B Our integration tests are for testing the interaction of our classes either with each other, or 3rd party libraries. So running them in ncrunch and getting test failure notifications straight away is useful for us.

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Frank Shearar commented
What do you mean by "lose the granularity"? Do you mean that your overall coverage percentage looks too high, because test code counts towards "covered code"?
If so, you can exclude projects from the coverage metrics: in the Metrics window, expand your solution, right click a project and select "Exclude from metrics aggregation".