[docs] add docs for jinja Formula/math in numeric fields

Hey all, I want to raise the discussion as I didn’t find a documented solution and the obvious ways do not work.

Is it possible to pass formulas as configuration values? A typical example would be duration_seconds = 24*60*60 or factor = 1/60. Yes, one could write it out but the mathematical expression often holds additional value or is more accurate (second example).

I read about “computed values” but wasn’t able to make that work for the example.

Thanks and all the best

[rochacbruno]

@ThomDietrich reopened! lets work on a docs session for this.

[ThomDietrich]

Wait, don’t just close the ticket.

If I had to ask and you needed four comments to get to this revelation, maybe this should be documented?