PEN Window Manager allows you to add more apps to the Pen Window drawer of Samsung's Galaxy NOTE 3 phones and any Samsung device that has the Pen Window feature built-in or ported. It requires that you have a ROOTED phone or device and an undamaged CSC feature.xml or others.xml file. Enabling/disabling apps for Pen Window requires a restart of the device.
Check out the Pen Window Launcher as an addon/pugin for Pen Window Manager that allows you to open the Pen Window drawer without using the Spen.
Featured on XDA Portal: http://tinyurl.com/q8agwcs
Featured on PhoneArena: http://tinyurl.com/lzpmua6
For discussions and troubleshooting, please check out the flollowing XDA Forum Link: http://tinyurl.com/q42qrd2
Please uninstall previous versions taken from XDA forum because of app signature conflict.
Samsung Galaxy Note 3
Samsung Galaxy Note 10.1 (2014)
Samsung Galaxy Note 12.2
Samsung Galaxy Tab Pro 8.4, 10.1, 12.2