{{job.trigger.type}} not working and throws error on Edit Parameter from Job page

BrianJ
New Contributor II

Following the instruction on the Job Parameter Dynamic values, I am able to use 

{{job.id}}
{{job.name}}
{{job.run_id}}
{{job.repair_count}}
{{job.start_time.[argument]}}
However, when I set trigger_type as trigger_type: {{job.trigger.type}} and hit SAVE, it errors out as below image.

BrianJ_1-1713544000542.png

also, I noticed that the Dynamic values window from the Job parameter Edit Parameters page vs. the official doc has discrepancy - {{job.parameters.[name]}} is missing from the Job parameter Edit Parameters page.

BrianJ_0-1713544144110.png