https://www.htc.com/mea-en/support/htc-one-m9/howto/601562.html
HTC One M9 - Turning smart folders on and off - HTC SUPPORT | HTC Middle East
htc one m9smart folders
https://www.htc.com/au/support/htc-one-m8s/howto/741486.html
HTC One M8s - Turning smart folders on and off - HTC SUPPORT | HTC Australia
htc one m8ssmart foldersturning
https://virtualdj.com/manuals/virtualdj/interface/database/smartfolders.html
VirtualDJ - User Manual - Smart Folders
With over 100,000,000 downloads, VirtualDJ packs the most advanced DJ technology. Both perfect to start DJing, and perfect for advanced pro DJs.
user manualvirtualdjsmartfolders