Thank you for your post. It is possible to measure area from two overlapping polygons in Earthlight.
The best tool to achieve this is the Clone tool. It is used for extracting intersecting part of the polygons.
Below you can find step by step guide on how to do this:
1 Please make sure that Inspect is set to ‘Active’ and then select a layer which stores a first polygon on the key pane.
2 Click on the **Clone** tool in the Edit tab.
3 Select the first polygon and click on the ‘**Clone record’ button**' on the right hand pane.
4 Select a layer which stores a second polygon.
5 Repeat step 3 for the second polygon - select the second polygon and click on the ‘**Clone record**’ button.
6 Click on the **Slice** tool.
7 Select **Mark & Move** tool and select those parts of polygons that you do not want to measure.
8 Click **Delete** button. Now you should see area of intersecting part on the right hand pane.
9 After finishing your measurements click on **Cancel** button to end the operation. Please be careful and do not click Save button, because it will save new record.