you can select many object which have bevel for example and in the channel box you can drag the value and all the objects can have the same value in the same time. but this you can't do in attribute editor and please don't tell me to use attribute sheet which is very old and very crowded and spend long time to find what you want and manytime you can't find what you want..
i'm currently working on a project which has a ton of shaders which i need to adjust one by one and it drives me crazy.. while i wish to select all of the shaders in the same and in the attribute editor just put the value or color i want and all of them take the same value.. it would be amazing...
p.s : in houdini i love this and it exists since very long time.. why not maya?