The Fork Button is used to copy a page to the Origin site.
The fork button is one of two buttons tucked into the lower right corner of the space allocated to the journal.
The fork button is akwardly [laced at the very bottom of a wiki-page (panel). Aslo it does not look like a fork. Th icon is a flag - which is just wrong.
The term 'fork' comes from open-source software and means to make a copy under new ownership and control.
# Why it looks like a flag? To be honest no one knows. It uses the flag icon (which is just wrong).