[ SOLVED ] A few Desktop and update questions

[paul1149]

I've got several questions that maybe could be cleaned up in one thread. Any help would be appreciated.

• I just started using workspaces. I can switch them by Ctrl-Alt-<left|right>, or by mouse action. Is it possible to list all open programs in both/either the Panel and/or the Alt-Tab dialog, and thereby switch directly to the desired prog? I know I can do it by middle-click on the desktop, but the desktop is not always visible. I think it's important to have a view of all open progs.
• I have lost the window snapping function. Toggling settings does not jog it back on. Full disclosure: I installed LXDE, thinking to give it a try, just before this happened. I didn't find a way to invoke it, and I've since uninstalled much of it, but snapping is not back. Is there any way to restore it?
• Is there a compositor available for LL? I might want to check out some advanced features.
• Lastly, though not desktop related, I seem to have lost the ability to update LL. Updates is no longer in the Menu. I did configure the new automatic reminders, for twice a week, I believe, but I haven't seen any sign of them in a week, which doesn't seem right. I'm on 3.4, and Upgrade says this is the latest. So can one still update manually?

Thanks and BW.