Line Limits
KeyCreator \ Edit \ System-Settings \ Line-Limits

Location: Edit>System Settings>Line Limits

When Line Limits is selected, lines will be created to the length of the current viewport limits, rather than limiting line construction to the selected line creation methods, such as angle, end points, parallel, and tangent. For example, Line>End Points creates lines using the end points to determine only the slope of the line, not its length.