fire edit/delete actions on custom column

I have added a column with custom renderer like this,
settings = {
actions: false,
columns: {
operation:{
title:"operation",
type: 'custom',
renderComponent: CustomActionRenderComponent,
}
}

and now it looks like this :


I want to fire the default edit or delete action when user clicks on link in dropdown.
Basically I want to call the same function which are invoked when default action column is enabled and links in that column are clicked.