decimal format in storyline

I am developing a product that shows student how a number value changes when the decimal point is moved. I have three seperate displays: One show decimal format, another shows the value in scientific notation and the final display shows the engineering prefix (n, u, m, k, M, G) as applicable.

My problem is, when the decimal format goes below 0.000001 (1 u) storyline automatically converts the value to scientific notation. Rather than showing 0.0000001 (100 n) the display shows 1e-7. To meet my needs, this display must be in decimal format.

How can I stop storyline from converting the value to scientific notation?