Revit Schedule Sum Cells from different rows and columns

[belen_monjardin]

I have a schedule with different columns coming from different lengths parameters.  I need to select these two different cells, sum them and obtain the total in a  new column. Has anyone a solution for this? Thanks in advance.

[BDMackey]

Unfortunately in Revit you can't do cell to cell calculations only column to column

[barthbradley]

There might be a solution through a Calculated Parameter Column testing a unique identifier Parameter Field of the Rooms.  Can you be more specific about what you are after?  Also, where's the "Finish Height" Parameter coming from?