You can also go to menu
Window > Show View > Other > Verilog Language > Layers
to open the Layers View.
For an extern declaration you can quickly see where it is implemented using the Layers View.
Position the cursor on the entity name and press Shift+F3 or right click and chose Show Layers from the menu.
The Layers View is automatically raised at any invocation.
You can also go to menu
Window > Show View > Other > Verilog Language > Layers
to open the Layers View.
You can double click on a layer and jump to the corresponding source location.
