Rubymine reveal current document in project tree / project drawer
Navigate
| Select In
, Project View. Shortcut would depend on keymap, default is Alt+F1.
Also you can use target icon in Project view. With Rubymine 2019, it'a new target icon.
In RubyMine 2019.3:
- click on the project gear icon
- select "Always select opened file"
You can use a setting that automatically does that.
In Project View go to settings and activate Autoscroll From Source
It will open current file in the project tree like sublime or atom does.