So I need to change the precision on just one custom property value.

Let's say the CP "Length" is entered with 4 decimal places 8.0000

I do some math in the equation manager and want to output a value with 4 decimal places, say 16.0000, but SW outputs just 16

How can I get the value to output correctly?

I know ROUND() can get you less decimals when you have too many.

Is there a way to make this work the other way?

I guess I need trailing zeros in equations? Is there an option for that?