With RubyMine, you can switch between contexts that are not associated with specific tasks.
To switch to another context
Choose Tools | Tasks&Contexts | Load Context on the main menu or press NothingNothingNothingNothingNothingNothingNothingNothingNothingNothingNothingNothingNothing.
In the Load Context pop-up window, select the desired context from the list.