You can define the required number of decimal places as the width of the data behind the next colon.
For example, if you want to format the coordinate X to the width 12 characters and 4 decimal places, write in the prescription of the format the text <X:12:4>.
If you don't define the number of decimal places, the GROMA program will use the implicit format, i.e. numbers and prefixes in whole numbers, others according to the settings in Settings->Input/Output coordinatess format .