Gnome always on top

How to permanently set application window to be always on top in GNOME? Yes, you can right click on window header in GNOME, and check always on top. Unfortunately, after closing window, this setting will not remain. In three steps, I will show how to set calculator [gcalctool] to stay permanently above

1] Install Devils Pie [a small window-matching utility]

yum install devilspie # or yum install gdevilspie

2] Create gcalctool.ds file in ~/.devilspie directory and put the following lines:

[if [is [application_name] "gcalctool"] [begin [above] ] ]

3] Set Devils Pie to startup on user login in session manager

# open Sessions preferences and add startup program System -> Preferences -> Personal -> Sessions [Add] # fill the input fields: Name -> Devil's Pie Command -> /usr/bin/devilspie Comment -> gcalctool stays on top

The described procedure about making windows always on top is not crucial, but I hope it is helpful.