AFAIK -- The short answer is NO.
This is because Archicad does not have a property which displays working units and you can not combine two properties in a single cell. You could add a custom text column next to it and fill it in manually.
OR-- You could create a expression which converts the area to a string and append the working unit onto that string. Then use that expression in the schedule cell. Only have to do it once.
I have basically the same problem in handling currency which Archicad does not handle at all.
If there is a better solution, I like to know it as this problem comes up a lot.
Gerry
Windows 11 - Visual Studio 2022; ArchiCAD 27