To convert a headline code without measure into a headline code with measure, just add the >m...< command to the end of all the tags.

>m 16pc<

Such element may be used in any column width for a linked text or an unlinked text with justification area. The headline will wrap on the linked frame or the justification area. If applied on a unlinked text without any justification area in the Text Editor Ted4, the headline is wrapped on the width specified in the >m...< command.