If you want front wide you need a receiver that does either dts x or audyssey dsx, with DTS x it's still going to depend on whether or not the manufacturer allows you to assign a front wide configuration.
If all of your speakers are in ceiling then you're gonna have a problem. None of the sounds in the main bed channels are supposed to come from overhead. An atmos configuration with all speakers in ceiling would completely destroy the imaging of atmos.
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