Sometimes you need to refactor your app, for example when a field from 1 entity should move to another entity.
In that case I start in the Domain Model, right click the field and select Find Usages. You then get a list under the Find Results tab, from where you can walk through all pages and micro/nanoflows where it is used.
But most apps contain some Excluded from Project items, that you see like (BAK_Page) shown below in the explorer:
In the Editor tabs it appears without like:
It avoid unneeded work if I would see faster that the page or flow is excluded from the project.