`cei:add` is not displayed in charter views
Created by: GVogeler
<cei:add> is translated into <span class="cei-add"> in https://github.com/icaruseu/mom-ca/blob/master/my/XRX/src/mom/app/charter/xsl/cei2html.xsl#L768
https://github.com/icaruseu/mom-ca/blob/master/my/XRX/src/mom/app/charter/widget/charter.widget.xml#L786 defines for this css-class 'display:none'.
Users would assume that the addition should be displayed