#### 4.4.1 Mark

Syntax: `Mark [0|1]`
Abbreviation: `M`

sets the mark at the current position or cancels the previous mark. The mark and cursor together define the range of text over which clips (`Cut`, `Copy`, `Erase`) and left and right shifts operate .

If you invoke `Mark` with no arguments, it will set the mark. If you specify 0 or 1, the mark will be canceled or set to the current position, respectively. A capital ‘`M`’ appears on the status bar, if the mark is active.