To use correctly the framework go to the start page and read the instructions. You need to understand the Bootstrap grid system and the structure of the framework.
You can access the documentation of every component from the top menu of this website by click the components menu voice. If you not found what's you're looking for try the search.
You can access the documentation of every container and section from the top menu of this website by click the containers menu voice. Check the start documentation for more details.
Two sides is another plugin used to create stunning full screen websites.
If you need assistence for your template please go to the comments area of the item's page on Themeforest and create a new comment for your request. The free support not cover customizations or tutorials requests but only bugs related problems. It's usually provided only from the comments area or by email.