The Field dropdown lists your own fields, fetched with your API key. The queue is every film where that field is still empty, and the button below writes "Value to set" into it — pick one of the field's own options if it's a dropdown field, or type any text if it's a text field."Friend's list" mode goes through the friend's films instead of yours, filtered on one of their own fields below. For each match, this searches your loaded chat and lets you set your own Field/Value on your own matching row — creating it first if you don't have one yet. Nothing is ever written to the friend's list.