SOLVED: Displaying variables in editor mode on the component container

I have a use case where I have to show only on the editor instance (not preview and not publish) the component name and a field that I retrieve from the model.
This is what I have done (code below) but that creates a new div whereas I would like to display the variable "on" the component container box just like now Articles and Drag component here shows. End result should be Article :${model.blogTag} in the container box slighly grayed out.
<sly data-sly-use.model="xxx.component.content.ArticlesModel"
data-sly-use.template="core/wcm/components/commons/v1/templates.html"></sly>
<sly data-sly-call="${template.placeholder @ isEmpty=!model.tagDefined}"></sly>
<sly data-sly-test="${wcmmode.edit}">
<div data-sly-test="${model.tagDefined && model.authorInstance}">
Article :${model.blogTag}
</div>
</sly>