Add button to mobile app - Freedom UI

Hi everyone,

I am trying to add a button to the record page of the Contacts section on Freedom UI in the Mobile app.

This is what I tried adding to the viewConfigDiff on the client module MobileFUIContactRecordPageSettingsDefaultWorkplace:

{\"operation\": \"insert\", \"name\": \"MyButton\", \"parentName\": \"profileColumnSet\", \"propertyName\":\"items\", \"index\": 3, \"values\":{\"type\": \"crt.Button\", \"clicked\": {\"request\": \"crt.TestRequest\"}, \"icon\": \"webforms-button-icon\", \"caption\": \"Test\", \"color\": \"primary\", \"size\": \"medium\", \"iconPosition\": \"left-icon\"}},

I followed the below community article:

https://community.creatio.com/questions/how-add-custom-button-mobile-creatio-freedom-ui-inside-edit-pagerecord-page

However, the button isn't getting added to the page. Am I missing something? How can I identify different elements I can possible use for the parentName and the associated propertyName in the mobile application? 

Alternatively, is there a way to override an existing button on the mobile app in freedom UI?

Regards,

Ramya