The viewer window is the principal image viewer in OnePacs Workstation for macOS. Generally speaking, opening a dataset in the app refers to opening a 2D viewer to display that dataset.
When navigating the viewer to focus on a particular area, having to switch between tools can be annoying, even if you have adopted the keyboard shortcuts.
Without having to switch from the default WL/WW tool, you can change the left mouse button behavior by pressing the following keys:
With the right mouse button being by default linked to zooming, and with the mouse scroll wheel being linked to series scrolling, with these keyboard modifiers you have stateless access to all the viewer navigation tools.