How to output news data to the required tpl?

Question

Yii

For the first time I come across a project on yii. this is how the structure looks like:

This is how the header looks like

:

add a news slider. The idea was to find a model that is responsible for the news (but where to look for it?)) and take the code responsible for the info. After that, find the model of the catalog of enterprises, put this code there and stir up the design of the slider with ready-made information in the template.
Tell me how to be in yii not bub boom ((
PS I can still throw screenshots)