Go to record is a script step. It is not an expression that you can use in a calculation. It shouldn't appear in an "calculation guide" what is that? It can be found in FileMaker help as that also lists script steps.
You'd need to set up a script to omit the records you don't want to show on your labels layout. You can open Layout Setup and use the On Layout Enter script trigger to perform a script that does the find to omit your inactive records.
haha great, thank you, I will do that, I said I was a complete novice and I didn't realise that you couldn't use script steps in a calculation.
Thanks for your help. :)