After the channel groups are created on the Channel group page, this page can be used to assign channel groups to the selected rooms. The list contains the name and description fields. Click the create button at the bottom right to go to the combination creation page. At the top of this page are the name and description input text fields. Below is a list of rooms registered in the room list and channel groups created in the channel group page. The rooms and channel groups to be assigned to this group are added to the empty boxes to their left by drag and drop. These combinations added to the list can then be edited or deleted.