RubyMine - Highlight Occurances of all instances under Caret

Hi all.

Using RubyMine #820 and I am struggling to find how to enable RubyMine to highlight all occurrences of a variable under the caret.

I know how to do this manually by using Control + F3 but I was after an automatic solution (i.e. without having to Control + F3).

I've tried a number of plugins from settings -> Plugins -> Available and tried to install the following:

* Indentier Highligher - Installed and tweaked by adding

<depends>com.intellij.modules.lang</depends>

to the plugin.xml for it to load in RubyMine... but no joy

* BrowseWordAtCaret - Same as above

Has anyone found a solution for RubyMine?

Thanks for any help and cheers.