A way to bring together the same icons

[Dariosky-01]

In the left window the one with many icons represented objects or enemies, in the objects part there are things that look the same to the eye but that in reality not only, I mean like bricks or objects ["?"], It would be useful in this window, for deflate the number of repeated icons, (and make room for the other different ones), a menu that is activated (or even made visible in the GUI) only when such an object is selected, to give the possibility to always change an example object "the brick" in the desired brick, an example brick returns a leaf, or a flower, or many coins or a life ...

It would be easier to add this option in the GUI also not to have to delete the object inside the level project to go and find the object that really interests when it is, in this case, always of the same type "the brick", because sometimes it is difficult if you do not know or remember the exact position in the window. Not having this GUI option would waste time and limit the view of icons of different types to show the icons all the same outside but which return different objects to Mario in the level.

[mchlnix]

If you hover over the icons, a tooltip with its name will appear, also in a somewhat recent change the many bricks now have their item on top of them.

While it would maybe be more convenient to group objects based on what they do, the ROM does not provide that knowledge necessarily. They are shown in the order that they appear in.

It could be interesting to group them based on their icon, like you say, that just appearance is enough to group them.