CustomField Configuration

Hello All
I’m using “jira:customFieldType” to create my own customFieldType with type object.

I’m using Jira UI to create the customField, using my previous configurated customFieldType.

I’m trying to access the configuration of the customField using:
But i’m only getting the ID and no configuration info.

Also, when i try to use:
I get a forbidden response

I found out that if you haven’t configure any context the configuration would be empty.