How to change URL post type Opal Single Event plugin

Step 1: Download latest version Opal Single Event plugin and update for your site.

Link download: http://www.wpopal.com/thememods/opalsingleevent.zip

Step 2: Go to Settings -> OpalSingleEvent Setting -> Add slug for field config.

Step 3: Go to Settings -> Permalink -> Disable permalink( click Plain) -> Save and refesh your site.

Step 4: Enable permalink and refesh your site, then check your link