


By smoothly I mean you should be able to zoom in/out and switch modes all while your other hand is operating the trackpad, you want to be able to zoom at the same time as moving around. Obviously none of this works on a laptop without a mouse, which is a big problem, so I need to find key combinations on the keyboard that allow all this smoothly. The scroll wheel zooms in and out, but only in the special mode.A long middle mouse button click resets the view to the default zoom, focus, and normal cursor mode.A short middle mouse button click switches between those two modes.If this is confusing this video shows the special mode in action.

I'm designing an editing program (Mac/Windows) that has a slightly unusual scheme for zooming and controlling the mouse cursor: a normal mode in which the cursor works normally, and a special mode in which the mouse cursor remains in the centre of the window and moving the mouse moves everything else, allowing you to move indefinitely for miles, and the mouse scroll wheel in this mode allows to zoom in and out by increments of 1.41x with the centred cursor as the focus.
