Enhancement: have a way of specifying null in a format in the profile

[dancunningham]

For some tiles we just want the caption to display (as it is a smaller font size) and not the first line.

Can't figure out anything to put in the format string in the profile to prevent the first line showing.

I tried:
null
 
{null}
{1,null}
{1,text,0}
and a few others. For all of them, it just shows that text as a string.

I ended up just putting in "-" which is OK as a crappy workaround for now, but there should be a way to do this.

(and/or have an explicit and different "long_text" field type for situations like this)