Editing Scroll Lock (section)

==={{anchor|CC}}Copy and paste===
In conjunction with the alternative DOS keyboard and console drivers FreeKEYB and K3PLUS, {{keypress|Scroll Lock}} also serves as part of a [[copy & paste]] facility between applications. Compared to the standard keyboard driver [[KEYB (DOS command)|KEYB]] these drivers offer several extensions including an [[extended keyboard buffer|extended keystroke buffer]] with key stacking facility, macro recorder, and a second cursor called CopyCursor, which can be invoked on demand (by default on pressing {{keypress|Ctrl|Alt|F11}} or the middle mouse button) and freely move on the screen using the cursor keys or the mouse, even outside the area reachable by the standard cursor in the running application. Once invoked, pressing {{keypress|F11}} (or the left mouse button) the characters under the CopyCursor can be stuffed, one after another, into the keyboard buffer, from where they will be read by the running application as emulated key (or [[Alt Numpad]]) input, thereby typically showing up at the location of the standard cursor. The CopyCursor will move to the next screen position after each {{keypress|F11}} (or backwards with each {{keypress|Shift|F11}}). Normal keyboard input is possible while the CopyCursor is enabled, and the user can switch between the two cursors by toggling the {{keypress|Ctrl|Alt|F11}} hotkey again. Pressing {{keypress|Esc}}<!-- ignoring the ESC as input --> or {{keypress|Enter}}<!-- taking the Enter as normal input at the same time --> exits the CopyCursor, so that, on its next invocation, it will show up at the position of the standard cursor again rather than at its previous location. If the screen contents are scrolled, the position of the CopyCursor will move accordingly until reaching the display limits. With {{keypress|Scroll Lock}} activated, keypresses will still reach the normal keystroke buffer, while CopyCursor input will be stacked up internally for later use in a second queue, dynamically maintained within the extended keystroke buffer. Thereby, it is possible to "collect" selected screen output from different programs and spool out the data much later while within yet another application by toggling {{keypress|Scroll Lock}} off again. It is also possible to use this as input into the macro recorder for later use as [[scrap macro]]. Since this is an integral part of these keyboard drivers, it is fully transparent to running software and therefore works with virtually any DOS program, including at the command prompt, temporary shelled programs, and task switchers.<ref name=" Paul_1995_K3PLUS"/><ref name="Paul_1997_FreeKEYB"/><ref name=" Paul_2006_FreeKEYB"/>