Hello Evan again, Is there a way to make the macro output invisible if the field which is filling the macro is empty. The macro is indeed in every Tiddler and if I have no ID-Nr only the link text is visible and the link leads to nowhere. Since it would be better the macro or the link text would be invisible. I can not delete it individually as it is part of a larger transclusion. Thank you for your help Regards Tob
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