Hello papsphilip,
Markers was more used before labels creation.
I prefer to use the labels to the door / window brand since version 21 because the labels are more flexible.
It is probably possible to use marker as well as I use labels but I do not use it because I do not need it anymore.
Christophe - FRANCEArchicad Designer and Teacher
Archicad 15 to 27 FRA FULL
OS 11.6 Big Sur - MacBook Pro 2017 - 16Go RAM
"Quality is never an accident ; it's always the result of an intelligent effort" John Ruskin