Plugins

Hi. I recently tried to get a free transitions / effects plug-in from Mixkit but and put it in my Effects.localized folder under movies. However, it didn't appear in FCP. When I went into applications, under show package contents - contents - plugins - media providers - resources - templates, it was not there either, it seemed to have its own category (labelled ink opening) amongst the others: Effects, Generators, Titles and Transitions. When I moved it under effects, it was not visible when I went back to FCP. Am I missing something here? When used a plugin under titles from the same site, it worked. Let me know if you can help. Best wishes.