Rounding values using decimal places functionality in calculated metrics

If I want to round numbers, I can currently use the calculated metric's function - "Round"

This will output something like this:

 I would like to use the decimal places option to round up as well, where the following config gives the same result.

This would help create the metrics faster and also put a use to the negative numbers that are can be selected in the UI, but currently not allowed to save.