Mrinmoy Bharadwaj
Ansys Employee
  1. "x" in the visibility column only hides the component from view. To delete a component, you have to select it in the list and press "delete"
  2. To exclude a component in the simulation, you must either deactivate or delete the compoent. To deactivate the component, select the corresponding component and toggle the "Active" option to "No"

You are referring to the correct document. Activate and deactivate are self-explanatory terms and so, the detailed explanation to these aren't necessary. If you watch the icon of the first column carefully, it resembles the eye of a person which is used to indicate visibility.