Thank you all for your speedy and generous replies! I had almost given up on this forum, but now see the value.
I understand the note can be turned off.
I don't want to do that.
I also don't want to manually enter all the data that I want to see on the drawing. That leads to inconsistency and errors.
As others have pointed out - this _IS_ supposed to be parametric and while I don't want to get up onto the 'why does PTC/Creo behave in such a monstrous manner' soap box, I will say that in every single cad package I've ever used for the past 20 odd years (and there are lots of them), this was an easy and simple thing to do.
Thanks again for the example files, I'm sure I can make something which will work as we need.