Logic expressions in the "Feature Description"

It would be beneficial if it was possible to do a sort of filtering on the text visible in the Feature Description (Geocortex Site; Layer).

As it is now, you can add text and replacement tokens and thereby creating a dynamic updated feature description e.g.

Station name ={NAME}

Voltage (kV) = {VOLTAGE}

Owner = {OWNER}

However what if you are only interested in seeing attribute values from fields with specific content? 

It would be preferable to be able to write a logic expression in the feature description dialog in order to filter what is shown e.g.:

if {OWNER} is not Null then

   Owner={OWNER}

end if

Another use case could be, depending on the value of a specific field, the font color and font size of a text would differ.