It’s difficult to understand how a nested property relates to the event or parent object that contains it. The current UI only links the top-level object to the event, making it feel like child fields (like skuId inside a skus[] array) are floating and unconnected.

In improvement could be either breadcrumb context, a tree structure, or at minimum an indication of which events the parent is used in. Right now, you only discover relationships by hovering, which is too subtle.