Equations in drawing sheet formats????

Hi All,

Is it possible to put a equation/s in a drawing sheet fornat based on other text boxes????

i.e i would be looking along the lines of             =if('Master Revision'="A","A","")

with 'Master revison' being the text box if looks up.

Just something that would help save a little time plus stop mistakes happening.

Best Regards

Jonno

SolidworksDrawings And Detailing