Create a new Run configuration called 'Project-debug'
In the JVM Options, add the following line
-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address={addr}
Where {addr} is a port that you have listen access on.
The SSE has opened port 1527 for listening.
Create a new Remote Debug configuration called 'Project-Debug'
Select 'Standard (Socket Attach)'
Select host localhost
Select port {addr} from above
Start the Run configuration first, you should see the following line:
Listening for transport dt_socket at address: {addr}
Start the Debug configuration next, then debug as usual.