In order to use Heatmap in InstaVR app follow below steps :
1. Add VR scenes to "Authoring" tab.
2. Enable "Basic Heatmap Analysis" option under Packaging >> Advanced >> Basic Heatmap Analysis
3. Package for the required app.
4.Download and view the app in respective device.
5. Switch the button ON at top lane of dashboard and click on "Enable Live Heatmap" to fetch live data . Go to Authoring >> Heatmap and view the heatmap data getting generated on dashboard.
Heatmap generated looks as the image below :