This question a little bit related to this topic.
When I create a wireframe with eg. a pop-up dialog then I would like to add a grey background between the UI components and the dialog.
In this use case, I am not able to select and modify the component at the back because always the foreground component (the transparent image or grey rectangle) is selected.
What I doing now is this: I move a little bit up-down-left-right the background layer with SHTFT + left, modify the components under the grey layer, and move back the grey rectangle.
Is there another, more efficient way to select components in this use case? Does your app have a “component hierarchy tree view”, where I can click and select components that were added to the wireframe?
I give you 3 examples: