I went to set up a data import for a CSV to bulk update product prices and discovered that there is no option to check for duplicates on `exp_channel_titles.entry_id` or `exp_channel_titles.url_title`.

This feature only seems to work on custom fields in the channel's field group.

Unfortunately this product list does not have any real-world product code or similar unique identification system so using the `entry_id` or `url_title` would be ideal.

I'm using plain old channels here and not using third-party add-ons for this channel.

Is this something that can be done using DataGrab or will I need to add this functionality?