You need to demolition part of existing wall. I mean, you need to select existing wall, split it at the end of the new door and that part of wall you need to assign to be demolished status. Then
Go to renovation filter options and in existing plan select "existing plan" and "elements to be demolished" SHOW
(You need to see demolition part of wall on existing filter)
Now when you go to planed status you will see what you want to see
(if you need help to setup filter settings in renovation filter, write)
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