Play app run debug configuration

I am using IntelliJ 12 and imported an existing Play app but I have switched to only using sbt and not play, e.g., sbt run, sbt compile, etc. This is because I have switched to only using Paul's sbt-extras script

https://github.com/paulp/sbt-extras

I encountered issues with prepping the Play project for IntelliJ since the examples are all using Play and I use sbt. I ended up doing the following to get it properly imported into IntelliJ

http://stackoverflow.com/questions/15823291/intellij-play-make-project-error-not-found-object-keys. Note that I started with Play 2.0.4 and had to downgrade to 2.0.1 in order for "sbt gen-idea" to work.

My next problem is how to configure the project to run / debug in IntelliJ, I tried to follow the instructions here but without success

http://www.jetbrains.com/idea/webhelp/play-framework.html#h2%0A____________creating_a_run/debug_configuration_for_debuggingaswrittencreate_run_config_for_debugging

Again, the instructions assume the usual Play setup and it doesn't work for me.

Any insights will be much appreciated.

Thanks,

Bob