Find entities with no OD:

Find entities with no OD, ODEDIT_HAS_NO_OD command – search and selection of graphic elements without attached OD.

The command processes both the preliminary and subsequent selection of graphic elements. By subsequent selection Enter means "all objects". Only graphic elements from visible and unfrozen or unlocked layers are processed.

See more fully in:

ODEDIT_description_en_125-2d.htm