I have extended the sales order model with a one2many field with a new model I had created called freight.lines.

This field is displayed in a one2many widget in the sales order form that opens each freight.lines form in a modal dialogue.

I have further defined a number of reports tied to the freight.lines model.

I would now like to have the regular dropdown print menu in the modal dialogue that opens for the freight.lines form within the sales order form.

I have tried to illustrate this below in linked edited screen capture and it is the one marked in red I am trying to get in place.

Illustration

How can I do this please?