Woffice can be seen as a framework to support your applications. You will find many options from the theme settings and extensions.
However, those options actually represent a very small part of the available possible customizations. Indeed, Woffice is full of actions, filters and ready to be overwritten functions.
To use those features, you need a Child theme so you can use its functions.php file to make your changes. See this article for more details.
How to find the right action, filter or function?
You have access to the woffice source files as it is what you download from Themeforest. Therefore, you can use any code editor to make a global search and look for what you want, you will have to sort all the matches and will probably find the right filter. Otherwise, ask us.
How do I use a filter or an action?
We highly recommend you to checkout these WordPress documentation pages: