You can make a very simple one by writing a short 2D script and saving it as a door/window marker subtype. For example:
DEFINE STYLE "text_style" "Arial", 2.5, 5, 0
STYLE text_style
Circle2 0, 0, 0.005*GLOB_SCALE
Text2 0, 0, GLOB_ID
Check the GDL manual for the details and what these things mean. This is just to get you started. You will need to explore deeper to create your chart format. Look under the global variables list in the "Miscellaneous" section at the end of the GDL manual for the window and door values (of the form WIDO_SILL for example)
BTW, to set the subtype you need to click the "Details" button in the main library part editor window.