Looks good and works fine. Thanks.
My suggestion for build-menu:
``` FT_00_LB=_Compile FT_00_CM=groovyc "%f" FT_00_WD=
EX_00_LB=Execute _Script EX_00_CM=groovy "%f" EX_00_WD= ```
To execute a non-script made by using groovyc, you'd need to also add the groovy jar to the classpath, but too difficult, so no reason for it.
Also, I think it'd be great to add Gradle files:
``` Groovy=*.groovy;*.gradle; ```