Hi ​@Bárbara Terra - it’s not possible to directly edit the functionality of the ‘recently active’ page.  If you can explain a bit more about what you’re looking to achieve, there are likely other ways to address those needs making use of existing platform features (for example, navigation elements or widgets).  There are pages that you can fully customize.  For example, the homepage, the community homepage and any custom pages you create.  On those pages you have a lot of options.   The dynamic content widget can be quite powerful for creating a custom ‘feed’ of content.