Full screen
Opens the window so it covers whole screen.
This button allows to expand window so it rationally occupy whole screen area.
Only the window client area is displayed without caption and other decorations. It's very useful to operate on the small monitor with applications which do not have such feature built in.
How it works
When
you press the button 
in the caption of the window, you turn on “Full screen”
mode and the window is expanded to cover whole screen area.
in the caption of the window, you turn on “Full screen”
mode and the window is expanded to cover whole screen area.eXtra Buttons set is not visible in "Full screen" mode. When you move mouse over the window top area, a special caption bar with a restore button will appear. Pressing restore button will exit "Full screen" mode by restoring initial window size and position.
Settings
Hot-Keys
For this button you may assign any valid keyboard and shift key (including <Alt> and <Ctrl>) combination for each of eXtra Buttons. Use of this combination will have the same result as pressing the eXtra Button.
Note! Input of two identical combinations of keys for various buttons is impossible. To setup Hot-key already used, change it for that button that uses it.
