This variable affects when screen scrolling will occur. When it is set to 1 (on, true, yes), scrolling and cursor positioning occur normally. When it is set to 0 (off, false, no), screen scrolling will occur only as the result of a SCROLL phrase in an ACCEPT or DISPLAY statement, and any DISPLAY statement that references a line past the bottom of the current window will be ignored. ACCEPT statements that reference a line past the bottom of the current window will be placed in the home position of the window. The default setting is 1.