Odoo.com 11. In the Manufacturing module, there is a Routings view. There is a button bar with Steps. 

I accidentally deleted the Steps Smart Button.

The add Smart Button button does not work because it's not a related field.

Using the Chrome Odoo Debugger extension there is a menu item name Field Views Get. I located the button from the other account:

<div class="oe_button_box" name="button_box" modifiers="{}">
<button name="375" type="action" icon="fa-list-ul" modifiers="{}" options="{}">                     Step

                 </button>

It's not a smart button but seems to be an action.

How do I add this back to the original view?