Hi @Tim Warfe? ,
I would suggest to use a View of the table as @James Nolet? wrote. You might create a view of the table in SSM (Spectrum Spatial Manager). Using the Advanced tab you can put your MISQL syntax. For getting the area you can put "MI_AREA(obj, 'sq mi', 'Spherical') as Area" int the select. For example,
SELECT Obj, MI_Style, Name, Population, MI_AREA(obj, 'sq mi', 'Spherical') as Area FROM "/Demo_SSA/Regions/"
MISQL (MapInfo SQL) details can be found here
http://support.pb.com/help/spectrum/12.2.1/en/webhelp/Spatial/index.html#Spatial/source/misql/misqlapiguide/introduction/introduction.html