Round to the nearest decimal (say nearest .125)

Is there a way to no suppress trailing 0’s so the specified decimal places (say 3 deep) are preserved? I’m seeing numbers that do round to a whole number clip so I’m getting 7 instead of 7.000 - thoughts on how to adjust this formatting?

update : found this thread that addresses my needs -

essentially using an Expression component with Format("{0:0.000}",x) will get you to round off to 3 decimal places and not suppress 0’s. Cheers!