Are you looking to untag a character (or other element) from a scene? Not to worry though, if you make mistakes while tagging elements, you can easily remove them from your script Breakdowns.
Step 1 — Navigate to Breakdowns
In your Scheduling sidebar menu click Breakdowns.
Step 2 — Open the More menu
Click the More Icon (⋮) next to the element you would like to remove.
Step 3 — Remove the Element
Click Remove Element, but remember, this is permanent and cannot be undone.