I'm very curious why popular or top exchanges don't have this kind of order.
You can see why in this topic, some don't even know this was a possibility for an older, so if you get people that trade coins and never felt the need for such a thing nor do they see an immediate need for it neither will exchanges see the need to implement this and add a ton of possible problems with it for a small userbase. Most of them in order to avoid this, have gone the way of API, you want something special, here, you play with it, our stock services are for one-two clicks customers, you want something more complicated, do it yourself, plus the ones with high volume will never use their dashboard and they have their own custom bots setting trades all times.
On top of that, if they really do implement more of those options, like Bitpand they will go for the "pro" version, exchanges are always looking for something to sell to their users so if one will ever implement such features it will be most likely behind a premium package, you need extra features to temp users into buying, right?
