Importing a feature info configuration is a great way to ensure that related layers have matching feature info boxes.

1. Open the LAYER ADMIN panel. 

2. Click on the layer for which you wish to import a feature info configuration.

3. Scroll to the bottom of the layer settings and find the "Import Feature Info Config" button.

4. Click on the "Import Feature Info Config" button. If the layer has any related layers, they will be selectable. 

5. Click "Select". 

You have now imported the feature info configuration from the related layer!

To see how you can manually customize a layer's feature info, click here.