Comment 9 for bug 172162

Steren: I'm sorry if I sounded like I was accusing you of copying it. But it is so similar that I honestly thought that you picked it up from there.

~suv: You have good points there. But I wonder how common are those situations to justify the creation of such a feature.
People who use to work with locked and hidden images probably won't be afraid of using the XML editor, and in that case wouldn't be a problem to select the hidden or locked image from the XML tree and use the image properties dialog (which in my proposal becomes a single dialog for the currently selected image, instead of a dialog for each image).
I mean, the only way to hide an object right now is via the Object Properties dialog, and it has some serious usability issues. For instance, If you hide any object, you'll only be able to take it back using the XML editor.
If you have locked objects is almost the same. You have to unlock them to touch them, so you have to be familiar with the object properties dialog and probably with the XML editor too.
So I still can't see the benefit. The users who are able to work with locked and hidden objects won't have much troubles. People who isn't will, and in that case the Steren's solution doesn't provide size adjustments so if the image is locked or hidden and the new link has different dimensions that dialog wouldn't help much.
For that particular cases I think a filter in the XML editor would be more helpful. You could simple filter image tags and use the image properties dialog for links management.