Splitting object in half

I’d like to cut an object in half. I will then use each half separately to create right hand and left hand borders. How do i do this?

The object: an ink jar. cut in half and then placing one side to right and one to left.



You could either do it all traditionnaly (drawing by drawing) or you could replace the element by half of itself at the break point and add a second element that would be the other half right beside it from that point on. Then you could manipulate both half independantly has they are no longer the same drawing element.

Best regards,