If a walk-in closet is large enough, please scan it. Otherwise, just stand at the doorway and pan to both sides. No need to walk in. Remember, you should back out of a closet if it’s small.
Not necessary, but up to you.
You can open closet doors and show the interior of closets in your video, however, this is not necessary. Our software is smart enough to know when it sees a closet door that there is a closet behind it. If the closet contains special equipment, you may decide to open the door to show us what is behind it.