Easier way to only change begin or end.
Click on axis to see red dots on both ends. Drag it to adjust axis begin or end. For large data, while dragging, press TAB key to adjust dragging speed, press SPACE key to adjust crosshair cursor shape.
Press X key, then move cursor closer to layer frame till double arrow shows. Drag to adjust axis begin or end. There is real time plot animation so easier to see how the final graph will look like.
Both dragging methods snaps to major ticks.
Note: System variable @DAA is the fast mode factor, default is 3, which means it will travel 3 times faster than the cursor movement.