add a new item to "tools > extensions"

This is help for older version, the up-to-date article - http://www.jetbrains.com/ruby/webhelp/external-tools.html

Regards, Oleg.

Thank you for your answer. (^^)
I have another question.

Question 1
I want to add a new item to "tools > extensions".
"external-tools" adds a macro to "tool > xxx".
How can I do?


Question 2
I want to write a new macro from a copy of "tools > extensions > erb > insert '<%=  %>' ".
Where can I see erb's macro?
I did `grep -ir '<%=' /Applications/RubymMine.app/`, but I can't find.

I'm sorry I've missed that you want to edit extensions read faster than think ;)
There is no functionality to add new extension anymore.  This functionality has been removed.

Regards, Oleg.

Thank you( ^^) _U~~