I can't understand why Lightroom CC doesn't allow sorting by file number sequence....a major flaw, in my opinion. Instead, LR CC sorts by capture date, import date, modified date, and star rating.
All other Adobe programs that provide viewing in some order include "sort by file name". LR CC makes finding a specific image much more difficult and ignores sequence order determined by the user. .
It's all the more unfortunate that this option exists on Lightroom CC for iOS !!!
Please, give us this option quickly in LR CC desktop for Mac and Windows !!!