1. Create a Chat Agent Configuration. 2. Enable “Visitor Blocking Enabled”. 3. Add Agents or their profiles to it. 4. Now agents can view Block icon. Block Unwanted Chat customers:https://help.salesforce.com/articleView?id=sf.live_agent_block_IPs_enduser.htm&type=5 Create an IP Blocking Rule to Block Chat Visitorshttps://help.salesforce.com/articleView?id=sf.live_agent_block_IPs_admin_create_blocking_rule.htm&type=5