Is it possible to change the 'help' button url inside a plugin (that I am developing) to get the documentation from my site?
I managed to add not replace, with JToolbarHelper::help()
I found a way of doing it. In plugin manifest file add:
<help url="HELP_URL" />
then, in plugin language file define:
HELP_URL = "http://example.com"
Now, I have the help button, inside my plugin, with my custom url. Hope this could be usefull to someone to.