在AWS Quicksight上设置授权访问并发数的限制。以下是一个示例代码，可以在AWS CloudFormation中使用：

Resources:
  QuickSightUser:
    Type: AWS::QuickSight::User
    Properties:
      UserName: "MyUserName"
      Email: "myemail@example.com"
      UserRole: "AUTHOR"
      CustomPermissionsName: "MyCustomPermissionSet"
      SessionLifetimeInMinutes: 240
      SessionTags:
        - Key: "Department"
          Value: "MyDepartment"
  QuickSightCustomPermissions:
    Type: AWS::QuickSight::Permissions
    Properties:
      AwsAccountId: !Ref QuickSightAccount
      Namespace: "default"
      Permissions:
        - Actions:
            - "quicksight:CreateDataSource"
            - "quicksight:CreateDataSet"
            - "quicksight:CreateFolder"
            - "quicksight:CreateGroup"
            - "quicksight:CreateGroupMembership"
            - "quicksight:CreateIAMPolicyAssignment"
            - "quicksight:CreateReader"
            - "quicksight:CreateTemplate"
            - "quicksight:CreateTheme"
            - "quicksight:DeleteGroupMembership"
            - "quicksight:DeleteIAMPolicyAssignment"
            - "quicksight:DeleteTemplate"
            - "quicksight:DescribeFolder"
            - "quicksight:DescribeGroup"
            - "quicksight:DescribeIAMPolicyAssignment"
            - "quicksight:DescribeTemplate"
            - "quicksight:DescribeTheme"
            - "quicksight:ListGroupMemberships"
            - "quicksight:ListIAMPolicyAssignments"
            - "quicksight:ListGroupMemberships"
            - "quicksight:ListTemplates"
            - "quicksight:ListThemes"
            - "quicksight:PassDataSource"
            - "quicksight:PassDataSet"
            - "quicksight:PassDeliveryStream"
            - "quicksight:PassFolder"
            - "quicksight:RegisterUser"
            - "quicksight:SearchDashboards"
            - "quicksight:Subscribe"
            - "quicksight:UpdateDashboardPermission"
            - "quicksight:UpdateDashboardPublishedVersion"
            - "quicksight:UpdateDataSetPermission"
            - "quicksight:UpdateDataSource"
            - "quicksight:UpdateDataSourcePermissions"
            - "quicksight:UpdateFolder"
            - "quicksight:UpdateGroup"
            - "quicksight:UpdateIAMPolicyAssignment"
            - "quicksight:UpdateTemplate"
            - "quicksight:UpdateTemplateAlias"
            - "