Hello there,
I am not quite sure it is appropriate to post this here, but I would really like access to create and adjust Plan Regions through the API, so I created it as an idea at the Autodesk Revit-Idea forum.
Could you be so nice as to vote for the idea if you think it would be nice?
https://forums.autodesk.com/t5/revit-ideas/api-access-to-plan-regions/idi-p/8327343
Thank you so much 