Automation to add additional Assets Objects to Custom Field

[johnsonj]

I'm trying to setup an automation that runs when an issue is created that adds additional Asset Objects to an existing Custom Field if the field contains a specific Object.

For simplicity:

Ticket Created with Custom Field "DOORs" populated with Object "Door 1".

I want Automation to update the field to be Door 1, Door2, Door 3 as well as any other objects that were already in the field.

I can see the field in the Edit automation component, but I'm not sure how to populate it with the additional objects. 

[Kurt Anderson]

I'm looking for the same thing. I can set the field to one thing and overwrite an existing object but I can't figure out the syntax to add a computer field through advanced field editing. Something like this *should* work give that 'aMachine' is the returned asset object.

{
    "fields": {
        "customfield_10170": [{
            "workspaceId": "{{aMachine.workspaceId}}",
            "globalId": "{{aMachine.globalId}}",
            "id": "{{aMachine.id}}"
        }]
    }
}