I am using Nailgun for JRuby to avoid slow JVM loading every time I run JRuby script. I found how to add --ng parametr to JRuby invocation (menu Run -> Edit Configurations) I would like to add this parameter global for all Rake tasks. RubyMine has default settings -e STDOUT.sync=true;STDERR.sync=true;load($0=ARGV.shift) and I cannot change it for all no-yet-used Rake tasks. So for Rake tasks executed for the first time, the task is added to the list (inder Ruby/Debug Configurations/Rake folder) with... default settings. It was even if I added --ng under Edit Defaults entry. It is ignored. Why?