When using the ProShow Plug-in for Lightroom, the option to export to ProShow is located under the File > Export menu. If the ProShow option isn’t there, you’ll need to verify that you’ve got the right version of Lightroom and the plug-in installed.
You will need to make sure that you are running the latest version of Lightroom. Please make sure to check your version of Lightroom and that it is currently 2.0 or higher. You can find information regarding Adobe Lightroom at www.adobe.com.
If you need assistance using the ProShow plug-in for Lightroom, you can view a tutorial below to get you started: