The Element Classification field in the Tags and Categories panel of elements lets you categorize them as other element types (e.g. set a Morph to be in the Door category.
Then this Element Classification parameter an be scheduled.
Since your Door is now modeled by several elements, I would recommend the following additional trick: If the Door is model, e.g. out of 5 elements, then select on of these elements, and assign it the "Door" Element Classification. Then set the ID of all 4 other elements to a blank text. When create the Schedule Scheme, in the Criteria panel add the criteria:
Element ID is not (and leave the "value" field blank)
This way no elements with no text in their ID field will be listed.
I don't think you have any means by which to make them act like Doors, though (like have and opening line in 2D, have a Marker etc.)
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