[[If? &subject=`[[*data1]][[*data2]][[*data3]]` &operator=`empty` &then=`<h4>subhead</h4>` ]]
vielleicht so? Sobald eines der TVs Inhalt hat -> Ausgabe [[If? &subject=`[[*data1]][[*data2]][[*data3]]` &operator=`empty` &then=`<h4>subhead</h4>` ]]