Slightly different to make their own controller, in this case you only want to create a method that already exists.

Basically CRUDBooster using the method - the method as follows:

getIndex

getAdd

getDetail($id)

getEdit($id)

postAddSave

postEditSave($id)

getDelete($id)


You can override the method above and you can customize to your own needs, but there are variables that you assign MANDATORY of $page_title

E.g  : 

public function getAdd() {
    $page_title = "Add New Data";
    $this->cbView('your_custom_view',compact('page_title'));
}