The Responsive Lightbox plugin comes with two types of settings: General and Lightbox. General settings allow for universal configurations that stay the same across all Lightbox types. LightBox Settings change and all for specific configurations of the lightbox. Lightbox settings change depending on which lightbox you select.
General Settings Page
Lightbox Scripts: These scripts are the viewing styles for the image. You have an option for prettyPhoto, SwipBox (the most popular kind), FancyBox, Nivo Lightbox, Image Lightbox, and TosRUs. There is also an option for premium extensions such as Justified Gallery and Lightcase Lightbox. When you select an script be sure to scroll to the bottom and click save.
The selector setting: This makes every image be defaulted to the selector “lightbox”. The selector is what triggers the lightbox effect. You would want to change this if you already are using “lightbox” as a selector for another plugin.
Image Links: This allows every image to have a lightbox as the default setting. If left unchecked images will lack a lightbox and will be displayed as configured in the display settings.
Single Image as Gallery: This allows a single image to be displayed as if it was part of a gallery of images.
Galleries: This allows galleries to have a lightbox by default. If left unchecked galleries will lack a lightbox and will be displayed as configured in the media settings. Different lightbox styles will display a gallery differently. The image below is a gallery in the prettyPhoto Lightbox style.
Gallery Image Size: This adjusts the size to thumbnail, medium, large or full-size.
Note: Selecting an option here overrides the configuration made in Display Settings.
Gallery Image Title: None, Image Title, Image Caption, Image Alt Text, Image Description. Selecting one of these options will give the image a Title in a gallery.
Force Gallery LightBox: Gives a lightbox for non-native WordPress galleries such as those found in JetPack
WooCommerce Lightbox: This option replaces the native WooCommerce product gallery support with the plugin lightbox. In the WooCommerce Product section, a lightbox will only be triggered for images placed in the Short Product Description and images placed in the Product Gallery Section. However, if an image is placed in the Product Image section it will not be triggered unless there are images in the Product Gallery section.
WooCommerce Image Trigger Areas:
Video Links: Gives a lightbox to videos. This effect will only work for videos that are linked (written out) on your site not embedded (automatically displayed).
When a user clicks on the link, a video lightbox is displayed.
Loading Place: This allows the lightbox script to be loaded in the header or the footer.
Note: For speed purposes scripts should be placed in the footer.
Conditional Loading: Allows scripts to be loaded only on pages that have images in the post content area. This feature might used when you do not want a lightbox on pages which could be helpful in speeding up a site’s loading time. If galleries or images are in widgets or located anywhere else it is best to disable this.
Delete Data: When the plugin is deactivated the plugin settings are deleted.