Hi,
You need to use the Label tool to achieve this.
1) Select the Label Tool
2) Select the door/window tool from the Content and Preview
3) Select the type of marker and adjust its attributes according to your needs.
4) Select your door and windows and from the List and Labelling pull down click the label windows option
Hope this helps.
ArchiCAD Services
ArchiCAD since v9 to latest
iMac, Windows 10