Samsung devices allow one to have 2 apps open on the screen at the same time, so as to transfer information easily from one to the other or to do other things. To do this one opens the Samsung Multiwindow Tray and drags the 2 apps into the main window.
Unfortunately, although K-9 is installed on the device it does not show in the Tray. This is simply because K-9 does not contain a couple of lines of code which the Samsung operating system requires. So, please, could K-9's developers add this code to the app and advise as when the update is available.
Millions of Samsung users will be grateful.
Thank you.