I have a "teaser" component (an image and a oneWay - Relation to a collection type X). This teaser component is used as a Repeatable Component in another collection type Y. Now when I edit the Y I see a lot of components but don't know which one is which when they are collapsed.

I can not use a string attribute of X as the Entry title of the teaser component but I would like to get a nice list of teasers when I edit Y.