You need to navigate to the Template Reference (TMRF) and edit that.
Oops, forgot to explain that bit, thanks Corrado.
If you put /CATREF-SCTN-C-TOS-EL in the command line it will take you straight to the Template reference, then as Corrado said, edit it or the TEXP below it, if you add #ATEXT in the TEXP, such as Btext '#PROPERTY^RTAG(C:3) #ATEXT' for example it should allow you to add your won text after the TAG.
If you don't have write access to the original TMRF, then right click, copy and paste it into your own library, rename and edit it, then point your SLAB at the new TMRF.
You need to navigate to the Template Reference (TMRF) and edit that.
Oops, forgot to explain that bit, thanks Corrado.
If you put /CATREF-SCTN-C-TOS-EL in the command line it will take you straight to the Template reference, then as Corrado said, edit it or the TEXP below it, if you add #ATEXT in the TEXP, such as Btext '#PROPERTY^RTAG(C:3) #ATEXT' for example it should allow you to add your won text after the TAG.
If you don't have write access to the original TMRF, then right click, copy and paste it into your own library, rename and edit it, then point your SLAB at the new TMRF.