I have two computers with Calibre on them. I added the GoodReads plugin on the first one a long time ago. The second computer, I just did tonight. The plugin icon on the first computer shows up on the bottom and top of the page. The second computer doesn't have the icon. I have authorized both computers with goodreads to use the plugin....does anyone have any ideas on how to show the plugin icon on the second computer?

Go to preferences - toolbar and add the icon for goodreads from the left window to the right window. Use the dropdown arrow to the right of the words "The main toolbar" to select the menu or toolbar you wish to add the option to.