You will not be able to modify Element IDs like that automatically.
However, if your purpose is schedules, you might have another way.
You could create a custom IFC property and put its value together from the ID and Orientation parameters of Doors using AC18's new IFC Mapping feature. Then you would be able to schedule that custom IFC Property.
Check out this post. It talks about creating custom IFC Properties, then mapping values to them. It talks about Labels, but the first 2-3 steps apply to this case as well:
http://archicad-talk.graphisoft.com/viewtopic.php?p=233623#233623
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