Need some help with Inline Entity Form hook function hook_inline_entity_form_table_fields_alter.
I'm trying to add columns to the table that is visible when editing a specific node. I have been able to add fields and got the content to print too, but I need to add a checkbox. I've unfortunate not been able to find how to add other custom fields, so I wonder if someone has used this function before?
I guess it would be possible to add a "checkbox" fields to the content type itself, but in this case its more like a function rather than a value that I want to save.