!!!!!!!!!REQUIRES ROOT!!!!!!!!!Confirmed working on:- LG G4- LG G3- LG G Flex- LG G Flex 2 (Might work)- LG G Pro 2- LG G Pad 7.0 LTE- LG G Vista- LG V10--- And possibly other LG phones that support multiwindow! ---
Adds any installed app to the the multi window feature in your lg g flex.
If you want, you can purchase the app, if not, you can download it for free from xda: http://forum.xda-developers.com/showthread.php?t=2707310
Though this version has alphabetized order and possibility to hide system and lg apps as a thank you