Grouped ghost roles and jump button (#7300)

Content.Shared/Ghost/Roles/GhostRolesEuiMessages.cs

@@ -35,6 +35,17 @@ namespace Content.Shared.Ghost.Roles
         }
     }
 
+    [NetSerializable, Serializable]
+    public sealed class GhostRoleFollowRequestMessage : EuiMessageBase
+    {
+        public uint Identifier { get; }
+
+        public GhostRoleFollowRequestMessage(uint identifier)
+        {
+            Identifier = identifier;
+        }
+    }
+
     [NetSerializable, Serializable]
     public sealed class GhostRoleWindowCloseMessage : EuiMessageBase
     {