1 Section Title - This is the title that will appear in your store for each section. If you don't write a title you will see Not Translated so give each section a title.
2 Section Type - This is where you indicate what products the module will display. You can automatically populate sections with products from the default Opencart modules such as Featured, Bestsellers, Specials, Latest any Category or Brand, as well as Random products from your entire store or a particular category, and of course Custom products added one by one. The Custom Sections module now offers the ability to use the title as a link or menu item. You can use it to point users to a more detailed page or you could build an entire module just with links and use it as an additional menu system.
3 Module Type - If you chose Module in the Section Type above you can now choose which set of products should be automatically added to your section. If you choose Category, Brand, Random or Custom you will be presented with the auto-complete selector which automatically finds the source for you. Note that the Featured module type is dependend on the Opencart Featured module found in Extensions > Modules > Featured. If that module is not installed and does not have a set of products added to it, it won't work here either. The Featured module is thus redundant because it's based on products added manually in the Opencart module which you could manually add here in a Custom module type which you can name Featured.
5 Status - Turn the section on/off.
5 Default Section - Indicate whether this section should be the one automatically selected (by default all products from all sections are visible in a large grid).
6 Item Limit - Limit the number of products displayed. For example you have a section type Random and only want to show 5 random products.
7 Sort Order - Move sections before or after other sections.