The "Social Media Monklet" can be inserted into the content area of a page/section to display a specific list of social icons. The "find" parameter is required in order to define which link list to use.  The large option displays the larger icons/buttons.

ex: {{social-media-monklet|find="social-links"}} 

A new list would need to be created under Settings > Link Lists. Each item in the list should use the following fields: name, link and icon class. The custom icons are created by entering a custom class in the "icon class" field (ie: fa-play).

Media > Galleries

The Gallery Monklet will display photo grid and you can select each one to display a full screen rotator overlay.

To add a gallery to a page/section, use the Insert > Gallery dropdown in the content editor and select the gallery you want to use. The "find_gallery" parameter will be preset in the monklet when selecting the gallery in the dropdown. 

ex: {{gallery-monklet|find_gallery="gallery-widget"}} 

Detailed monklet help can be found at http://help.monkcms.com/article/using-monklets/