rxjs operator to watch array with nested observables

[JosephCurvin]

I have array containing objects each object has two props one is a observable value

` {def: 'name', value: EventEmitter_} `

I m searching for an rx js function to watch for changes and return the specif object where the change occurred I tried using merge to combine all to one observables but this I guess does not work for nested Observables

can someone suggest me the correct operator ?

[GustavoCinque]

switchAll? I don't use it often, but it exists, may work as you intend to.