noun
line progression; direction of line advance
Computing term for the direction in which lines of text or code advance, such as in a terminal or text editor.
このエディタでは、行の進む方向を上から下に設定できる。
In this editor, you can set the line progression direction from top to bottom.
Compound of 行 (line) + の (possessive particle) + 進む (advance) + 方向 (direction).