Push notification personalization using collection attributes

Hi there,

We are looking to launch a push notification with personalized content using attributes from a collection array. Upon inserting the array into the editor, we noticed that there is no option to choose array positions like the advanced expressions and is returning null. Is collection not supported in Push personalization? And is there a way to fetch attributes from a specific array index with criteria?

For example, return me the object with product id = 123, and return the other attributes within the object.

Thanks.