Good Day Arnold,
Thanks for reaching out.
From PlusSpec 18 (v18.0) all window & door directions were moved into the dialog instead of using the Interact Tool (Note: Except for all swinging doors. You still click on the door swing plan). The field you will need to change is called 'Opening Direction'. If you have any trouble changing the opening direction of older windows & doors then I'd recommend editing the window/door as this will replace it with the new component.
Could you try this and let me know how you go?