Motion > Mouse Drag Modes > Center Mode
Sets the mouse drag origin to always be the center of the view instead of the point where the mouse drag began. The Center Mode command allows you to use motion with a selected object based at the center.
Click Motion > Mouse Drag Modes > Center Mode.
Click on an object in the model.
Center Mode changes the mouse drag motion to always be relative to the center of the window instead of where the mouse drag began in that window.