By using the "If" Statement it will allow us to set a specific leading and a larger font to the Fax block if no value is entered to the Phone and Cell blocks.

Code Used in Paragraph block:

!place {Tel}^^{Cell}%%2%%   %%%%place!!!if "{Cell}"="" and "{Tel}"=""%%<nextline leading=13 fontsize=18>{Fax}%%<nextline>{Fax}!!