Ghost/core/client/templates/editor-save-button.hbs

<button type="button" {{action "save"}} {{bind-attr class="view.isDangerous:button-delete:button-save :js-publish-button" }}>
    {{view.save-text}}
</button>
{{#gh-popover-button popoverName="post-save-menu" classNameBindings="open:active :options :up" title="Post Settings"}}
    <span class="hidden">Post Settings</span>
{{/gh-popover-button}} 
{{#gh-popover name="post-save-menu" closeOnClick="true" tagName="ul" classNames="editor-options overlay" publishTextBinding="view.publish-text" draftTextBinding="view.draft-text"}}
    <li {{bind-attr class="controller.willPublish:active" }}>
        <a {{action "setSaveType" "publish"}} href="#">{{view.publishText}}</a>
    </li>
    <li {{bind-attr class="controller.willPublish::active" }}>
        <a {{action "setSaveType" "draft"}} href="#">{{view.draftText}}</a>
    </li>
{{/gh-popover}}