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You can't. Also the majority of players seem to enjoy the new controls myself included.
You just have to get rid of that old way of thinking/controling and the controls then become very intuitive(imo even easier and better then old ones).
The only problem is you can't spam Kerfur/Maxwell and the such.
You only need to dedicate half an hour to an hour only to the controls and you'll see it will click(did for me at least and a good chunk of others).
The only gripes i have seen is people not being able to switch E and Hold E around.