I know there are some Mint experts here. :)
A couple of months back I installed a Top Panel on Mint Maya / Mate - my bottom bar was getting over-populated with open apps and I needed somewhere to put the apps tray itself.
I added an extra panel using right-click on the Bottom Panel and selecting New Panel, assigning this to the top of the screen. Somehow I managed to move all of the running apps such as Time/Date, Update, KAlarm, Gnome RDP, Klipper, Sound and others to the top bar, where they have stayed for the intervening months.
A couple of days ago I had cause to re-boot Mint - first time since the Top Panel.
Most, but not all, of the icons in the Top Panel tray disappeared and apps such as klipper, update and RDP appeared in the Bottom Bar tray, back at the right whence I'd moved them. About the only things that stayed at the top were Time/Date and a couple of actual Launch icons (eg caja and terminal).
Easy to reassign them: close apps in lower tray, Add to Top Panel, which as far as I recall was how I originally got them there.
No. The ones in the Top tray are now launchers, not "re-openers" (eg klipper starts a new instance instead of popping up the already-open clipboard manager). When the icon is clicked on a new instance of the app is generated AND the app's re-opener icon appears in the Bottom tray - I currently have three instances of RDP there!
Anyone have any ideas about getting the correct function for the icons back into the top tray, please? I've gone through Gnome Config, Mate Config, DConf - even installed the more or less useless gnome-tweak-tool - and spent two days "spare time" generally messing about.
A down-side of playing is: I changed the Windows Manager via KDE System Settings / Default Applications from Default KDE (Kwin) to Gnome Metacity and can't get it back - all my apps top bars are now not-quite-full-width green striped instead of the nice rounded full-width green bars I had before. When I try to change it back it says the change failed and the default KDE manager was re-applied - it lies! I can probably fix that but if anyone knows how before I get around to it, thanks!