Feature request: Heatmaps for device types

It would be great to be able to break down heatmaps into a few different views according to which standard device types were used (Desktop, smartphone etc). For example simply by selecting: Desktop, Smartphone, Tablet in the Site inspector


It would be even better if it were possible to apply segments in Site inspector to more flexibly determine which dimensions to use.

For example, to be able to limit what is displayed in the heatmap based on responsive state set in a custom dimension.