Groovy Shell doesn't support any commands?

IntelliJIDEA 12.1.3 Community Edition
Windows 7 64bit

I just started using IntelliJ and wanted to be able to use the Groovy Shell to interactively try various java (and Groovy) things, but the Groovy Shell doesn't support any commands?

If I start groovysh from the command line, I can enter the "help" command to see all sort of commands that the Groovy Shell supports:

    Available commands:
      help      (\h ) Display this help message
      ?         (\? ) Alias to: help
      exit      (\x ) Exit the shell
      quit      (\q ) Alias to: exit
      import    (\i ) Import a class into the namespace
      display   (\d ) Display the current buffer
      clear     (\c ) Clear the buffer and reset the prompt counter.
      show      (\S ) Show variables, classes or imports
      inspect   (\n ) Inspect a variable or the last result with the GUI object browser
      purge     (\p ) Purge variables, classes, imports or preferences
      edit      (\e ) Edit the current buffer
      load      (\l ) Load a file or URL into the buffer
      .         (\. ) Alias to: load
      save      (\s ) Save the current buffer to a file
      record    (\r ) Record the current session to a file
      history   (\H ) Display, manage and recall edit-line history
      alias     (\a ) Create an alias
      set       (\= ) Set (or list) preferences
      register  (\rc) Registers a new command with the shell

It would be nice to be able to use the following commands in IntelliJ's version of the Groovy Shell: show, inspect, purge, alias, set, register.

However, when I use Tools -> Groovy Shell from within IntelliJ I get:

    groovy.lang.MissingPropertyException: No such property: help for class: ideaGroovyConsole
            at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:50)
            at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty(PogoGetPropertySite.java:49)
            at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:231)
            at ideaGroovyConsole.run(ideaGroovyConsole.groovy:1)
            at groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:257)
            at groovy.lang.GroovyShell.run(GroovyShell.java:481)
            at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
            at java.lang.reflect.Method.invoke(Method.java:601)
            at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSite.invoke(PogoMetaMethodSite.java:231)
            at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.call(PogoMetaMethodSite.java:64)
            at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120)
            at console.run(console.txt:25)
            at groovy.ui.GroovyMain.processReader(GroovyMain.java:531)
            at groovy.ui.GroovyMain.processFiles(GroovyMain.java:441)
            at groovy.ui.GroovyMain.run(GroovyMain.java:341)
            at groovy.ui.GroovyMain.process(GroovyMain.java:329)
            at groovy.ui.GroovyMain.processArgs(GroovyMain.java:118)
            at groovy.ui.GroovyMain.main(GroovyMain.java:98)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
            at java.lang.reflect.Method.invoke(Method.java:601)
            at org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:106)
            at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:128)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
            at java.lang.reflect.Method.invoke(Method.java:601)
            at com.intellij.rt.execution.CommandLineWrapper.main(CommandLineWrapper.java:121)

Why doesn't this work?