Liming

I do have a idea that we somehow redesign the "xx.x" things, to make it flexible (and translate it into "sprintf"). e.g., "sadbasd asa a xx.xx asda a" translate to...

oh I mean we have two sets of printing format, one is from "printf_format", one is translating "xx.xx" into "%.2f" so that users could use any "xx.xx" to construct there...

then @khatril please consider this in the next increment

will `trim_levels_in_group` or `trim_levels_to_map` work here?