The SIS file format supports multiple dimensions of virtually unlimited sizes, including XY, Z planes, time points, channels, and sets. The main tool for navigating through these dimensions is the Navigator Panel. It is normally found in the top right of the arivis Vision4D window, but can also be opened by right-clicking anywhere in the panels on the right of the viewer or from Window > Panels.

The Navigator is context-sensitive and will only display the navigation tools for the available dimensions.

As a 3/4D analysis package, the most common dimensions a user might encounter are the depth of the stack (Z-axis), and time dimension. 

A variety of ways exist to navigate through each dimension. The most obvious and readily available of which are the scroll bars to the right and bottom of the navigator. If a set has more than one Z plane the slider on the right allows the user to go up and down through the stack. If a set has more than one time-point, the slider at the bottom of the navigator allows the user to navigate forward and back through the time points.

Customizeable keyboard shortcuts are also available (Ctrl+F or Ctrl-B for time, Ctrl+U or Ctrl-D for depth).

To navigate through Z quickly without moving your cursor away from the image on to the navigator panel, hold the Shift key and use the scroll function on your mouse or trackpad.

Similarly, to navigate through time without moving the cursor from the image, use the Ctrl key with the scroll function on your mouse or trackpad.

Note that both of these scroll-based functions are only available in the 2D viewer. In the 4D viewer, you must use either the keyboard shortcuts or the Navigator.