To open a dataset in the viewer you can either double-click on it or select it and click View.

Once in the Viewer, you can navigate to the dataset by using the usual mouse controls of click and drag. Use the mouse scroll-wheel to zoom in and out.

Click on the panels in the upper-left of the viewer screen.

The Navigation panel is split into Gallery, Navigator, Dimensions and Player.  The Gallery allows the user to select an imageset contained in the dataset.  In the Navigator panel you can Fit the image so that all of the image appears in the view.  1:1 will zoom so that one pixel in the image is represented as one pixel on the screen.  Use the slider to change the zoom level.

Use the Channel Settings Tab to turn channels off/on, adjust the gamma and bit depth. 

The Screenshot and Bookmarks.  Click 'Download screenshot' will take a screenshot and download it to your computer.  Save a location and orientation on the dataset by clicking 'Add Bookmark'.  Select the thumbnail for the bookmark to return to that location at any time. 

The Objects tab allows for the creation of objects on the image.  Objects can be manually drawn by the user or they may be created automatically as a result of running an analysis pipeline on a dataset. 

To manually draw an object, select from any of the drawing tools (rectangle, polygon, measure line, brush), draw you object and press Enter to save it.  It is also possible to use the brush tool.  By default, any shapes will be auto-filled but this can also be turned off by unticking the auto-fill box.  You can use the eraser to erase parts of the brush created object.

Objects can be sorted into groups.  To add a group, click the "+" icon

Note, if you plan on grouping objects, you should create your object group first, select it and then draw your objects.  You will not be able to add objects already drawn into another group.

The Settings panel simply allows for the changing of the pixel size and background colour.