Disappearing Schedule Comments

[cemberger]

We have a custom built schedule which has the typical "Comments" field.  As we aork in our project and add items to that particular row, the "Comments" field gets reset to be blank.  

What we are trying to do in effect is to establish a reference point so the we know where we are in relative to the reference point.

Is there a way to make the "Comments" field stick?

[Alfredo_Medina · Accepted solution]

"Comments" is an instance parameter, therefore, each "module_unit_type" might have different comments. Since the schedule has "Itemize every instance" OFF, Revit displays a value in "Comments" only when all the values are the same for a "module_unit_type". If there is at least one comment that is not the same, Revit cannot make a choice about which comment to show, and therefore, does not display anything.