web/web_responsive/static/src/xml/form_view.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
    Copyright 2017 LasLabs Inc.
    Copyright 2018 Alexandre Díaz
    License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).
-->

<templates id="form_view" xml:space="preserve">

    <t t-extend="FormView.buttons">
        <t t-jquery="button[accesskey='a']" t-operation="attributes">
            <attribute name="accesskey">e</attribute>
        </t>
    </t>

    <t t-extend="FieldStatus.content.button">
        <t t-jquery="button" t-operation="replace">
            <button type="button" t-att-data-value="i.id" t-att-disabled="disabled ? 'disabled' : undefined"
                t-attf-class="btn btn-sm o_arrow_button btn-#{i.selected ? 'primary' : 'default'}#{disabled ? ' disabled' : ''} #{button_css or ''}">
                <t t-esc="i.display_name"/>
            </button>
        </t>
    </t>


    <t t-extend="FieldStatus.content">
        <t t-jquery="[t-if='selection_folded.length']" t-operation="replace">
            <t t-if="selections &amp;&amp; has_folded">
                <ul class="dropdown-menu o-status-more hidden-lg hidden-md" role="menu">
                    <t t-set="button_css" t-value="'hidden-lg hidden-md'" />
                    <li t-foreach="selections" t-as="i">
                        <t t-if="!i.selected" t-call="FieldStatus.content.button"/>
                    </li>
                </ul>
                <button type="button" class="btn btn-sm o_arrow_button btn-default dropdown-toggle hidden-lg hidden-md" data-toggle="dropdown" aria-expanded="false">More <span class="caret"/></button>
            </t>
        </t>
        <t t-jquery="[t-foreach='selection_unfolded.reverse()']" t-operation="replace">
            <t t-if="selections">
                <t t-foreach="selections.reverse()" t-as="i">
                    <t t-set="button_css" t-value="i.selected?'':'hidden-xs hidden-sm'" />
                    <t t-call="FieldStatus.content.button"/>
                </t>
            </t>
        </t>
    </t>

    <t t-name="web_responsive.MenuStatusbarButtons">
        <div class="o_statusbar_buttons_container">
            <div class="o_statusbar_buttons_base hidden-xs hidden-sm">
                <!-- Normal Buttons Zone -->
            </div>
            <div class="dropdown o_statusbar_buttons_dropdown hidden-lg hidden-md">
                <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenuHeader" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
                    Task
                    <span class="caret"></span>
                </button>
                <ul class="dropdown-menu" aria-labelledby="dropdownMenuHeader">
                </ul>
            </div>
        </div>
    </t>

</templates>