[orca-list] gnome keystroke to go to system tray

[amir <mrdin8877 ymail com>]

Hi,
distro: ubuntu 14 with gnome, not unity.

sorry if this is offtopic but i cannot find other list to ask this. I've 
also search the web but no keystroke listing this. The case is,
i use skype but then i alt f4 out of it, and the window invisible, it 
moves to system tray (in windwos we call it that). but how do i restore 
it back? What keystroke will move to the system tray? besides, uget 
download manager also resides on system tray if we exit the window. TRy 
Super+m but it doesn't show skype. Any help would be muchly appreciated 
and thanks!