@jfeldman175 said:

I downloaded the plugin but I need to access the RoundCorner tool in Sketchup 2014. How do I find the tool?
Did you also get/install the newest Lib Fredo from the PluginStore?
That is need by most of Fredo's tools to work.
Once set up properly these tools have Toolbar and/or Menu/submenu entries - this is clearly explained in each tool's main pages...