How to draw a 2D curve for y=10*log10x in CST MWO?

I have to design an antenna, I need to paint a 2dcurve for y=10*log10x, but log10 is not a correct function.
Does someone know the name for this function in CST MWO?
neperian logarithm is: log...
thank you.

Log(a) ----Natural logarithm of a

Log(a) / Log(10) ---- Logarithm of a to a base of 10