Aws ssm maintenance window task with no targets

Hi all.
I want to create task in Maintenance Windows with no targets (Option “Task target not required” in Target section in AWS Console) by resource aws_ssm_maintenance_window_task, but in documentation targets option is required and Key parameter can be InstanceId or WindowTargetIds. It is possible to set as I want?

Screen from AWS Console configuration:


Ok, I found change for it here: resource/aws_ssm_maint_windows_task: Add CloudWatch configuration and… · hashicorp/terraform-provider-aws@596aa3d · GitHub