You can refer to the 'Unique ID' under 'User' in the left menu to assign or remove a GM role.
Unique ID of the User Assigned as GM
2. Channel
You can manage channels by directly adding or deleting new channels.
The channel list what you created
Creating channel
Category
Channels are classified as either GM or General. A GM channel is accessible only to users assigned as GM, while a General channel is accessible to all users, including GMs.
Channel Key
This is the channel key entered when adding a new channel. It cannot be duplicated with any channel key already on the list, and it cannot be modified after creation.
3. Profanity Filter
Manage the list of profane words filtered in the chat. Please make sure to separate each word with a comma (,).
Default profanities
4. Sending Notice
Send announcements, notifications, and other messages to all users within the chat.
There is no limit on the number of messages sent, but please note that additional charges may apply for excess CCU based on usage data.