Okay, here's the backstory.
When I started out, I just used green boxes of various widths as placeholder platforms. These, obviously, could just be a single object stretched to various widths, as the sprite was just a green box.
Fast forward to now, when I have unique sprites for each different-width platform. Stretching the sprites for one just looks terrible, so I need several different objects. I used Paste Clone on the basic platform several times, and now have several platforms which should be allowed to take different sprites and be placed where the old stretched ugly ones were.
The problem is this: Whenever I change the sprite on one platform, it changes the sprite on every object that was cloned from the original platform, that is to say, every platform. So I cannot in fact have unique sprites with this approach at all. Considering this, I was just wondering what the exact purpose of Paste Clone even is, if it does not differ in any noticeable way from straight Paste.
I'm aware that, in the time it took to type this post, I could have just made seven new objects, made them solid, and given them a width and height. The problem isn't really just here, because this just seems like a weird design issue, unless there's something I'm not understanding. It'd be great to be able to have objects that have different sprites and the exact same behavior. I would hate to hard-code every single enemy in an RPG.