Hey there yes you can use it like yours and with unlimited variations anywhere on the site.

You can show an example, but I’ve never seen such a lightbox in a preview

Lighbox not integrated this plugin but you can use it anywhere. Also you can use any lighbox plugin for this..

For ex you can use thishttps://wordpress.org/plugins/responsive-lightbox/ contains all ligthbox models.

1. lighbox demo (second image description) http://themeofwp.com/plugins/mega-gallery/image-gallery-effects/

2. lightbox demo http://themeofwp.com/plugins/mega-gallery/ihover-effects/ on first and second item

3. lightbox demo on first item http://themeofwp.com/plugins/mega-gallery/image-hover-effects/

I’ve some small changes on plugin for the lightbox. You’ll get lightobox supported version with next update.

Thanks! themeofwp.com team

Also you can test them http://themeofwp.com/plugins/mega-gallery/?testdrive=true with Live Test!

I need a lightbox with a sidebar that I can customize Unfortunately, I did not find such in the examples.

If you make a item as you needs with our plugin, you can use it anywhere as shortcode. Make sense? Feel free to test it widgets on live test.

Well the meaning is that I need to create a gallery with a lightbox output, as in the example (that is, with the right sidebar), is this really possible to do with this plugin?

Yes it’s possible please wait a while I’ll create a sample demo like your needs.

Thanks, I will be grateful for the support

Here is the widgetized demo http://themeofwp.com/plugins/mega-gallery/widgetized/