Yii. How to correctly call CButtonColumn from CGridView?

Question

Yii

I want to make a CGridView with buttons located under the data

. To do this, I made MyCGridView by inheriting CGridView, changing a little renderTableRow($row)
Tell me how to call the display of buttons through CButtonColumn ?
In the native CGridView, the view construct Yii::createComponent($row,$this);
but what parameters to pass to it so that the function returns the ready-made HTML code for displaying buttons?