String Functions in Borehole Calculations

I am looking to format the labelled text as strings, but I am struggling with the existing functions.

Is there a way to work with strings in calculations? E.g. "UCS:{UCS, a numeric column} MPa" or "{Recovery %} / {RQD %}" or even listing lab data?

I understand that I can export it, modify it how I want, and reimport but that locks me out of treating the values as numeric and also runs into issues with many unique categories on reimport.