Stretch side of half cylinder I am trying to pull the curved side of a half cylinder, so instead of doing this,


The curved side should bend to match where I am dragging the edge, while keeping the base in place (instead of pulling whole curved side, the curved side should bend to keep its position.)
1 - You can choose 3D cursor as pivot point and select everything and do s+z to scale on Z axis.




2 - You can use proportional editing, select the top edge and pull up. Adjust circle/influence size with mouse wheel.