Feed model text by non-text values

Hi there,

Is there a way to have model text in a family represent non-text values such as length?

I made a “parametric room” family, for fast modelling based on values taken on site.

I would like to read out this values in the geometry of the family.

I do realise this question sounds trivial, but I do remember from previous attempts that there are some built-in restrictions to the use of Model Text.

Kind regards,