So find/replace a text in all expressions? Yes, this would be useful.
I would also very much like the ability to replace objects in events with a different object type.
Yes, I understand that some events or actions may be incompatible, but many events exist in all objects. So the editor should allow me to replace "Sprite Set position" to "TiledBackground Set position" for example. Or "Text set text" to "SpriteFont set text".