Atmos Rules

I sell home cinema and A/V systems professionally and wanted to get your thoughts on the following questions. Is it possible to install a Dolby Atmos 5.1.2 or 5.1.4 configuration using only in-ceiling speakers with directional tweeters? My idea is to have the front left, center, and front right speakers in a straight parallel line close to the screen wall, and the surround speakers in the extreme rear corners of the room in-line with the front left