Hello axisphere, thank you for getting in touch and for your support!
Unfortunately we don't have any specific sample for achieving your desired effect, as it can be quite complex setting it up for displaying reflections correctly by just using grab screen nodes.
You might even have to resort to additional scripting, as per this
Mirror Reflection Shader example.
You may still look into our Water, Refracted Shadows and Reflect Refracted Soap Bubble samples and I would strongly recommend that you check out Unity's
Screen Space Reflection as an alternate and quick solution.
Please let us know if this information was useful, thanks!