AMOSi:Marker Keys
[Shift]+[Ctrl]+[number] Set a marker at current cursor position, with number
between 0 and 9 from numeric keypad.
[Ctrl]+[number] Jump to previously set marker numbered 0 to 9 from
numeric keypad.
[Shift]+[Ctrl]+[number] Set a marker at current cursor position, with number
between 0 and 9 from numeric keypad.
[Ctrl]+[number] Jump to previously set marker numbered 0 to 9 from
numeric keypad.