Blender 2.8 extrude vertices I apologise in advance if it's been answered before. I'm relatively new to blender and have been following this timelapse video (https://www.youtube.com/watch?v=wRzYBsTvnXY). At around 7:37, it seems the creator can extrude the vertices along the x-axis (or in any axes).


However, when I tried it, Blender just wouldn't let me extrude like the video did even I pressed 'xyz' during the extrusion.



From what I'm seeing is, he first selected (Ctrl) two vertices then extruded (E) using the mouse. Am I missing something? Or do I have to do some custom settings? I'm aware that there're some major updates from 2.79b to 2.8 but this is not changed, right?
Deactivate the Mirror modifier Clipping option to prevent vertices from sticking to mirror plane, then it's possible to move them away from it even if they are already placed on it.