Moving Items Manager

Can’t seem to move the items manager from side to side by dragging it like shown in the instruction manual. I can change it in the settings from the left to the right but when it’s pinned it jumps back to the left. Unpin it and it jumps to the back to the right. Strange behaviour all around.

Is it not possible to drag it anymore and the manual is simply outdated and incorrect? Any help is always appreciated

Cheers
Rick