This is with reference to this answer about Auto activation triggers for JavaScript:
https://stackoverflow.com/a/4765318/1472186 The answer was only for Java.
There is a comment suggesting editting Eclipse settings file manually to bypass the 4 character limit on the trigger for JavaScript, but I could not find the settings file in my Eclipse Luna.
I have also looked at this document, but it is only for Java.
I have located \configuration\org.eclipse.core.runtime
but the files inside don't seem to be editable.
Any idea on how to add more characters into auto activation triggers for JavaScript?