View Modes
"View Modes" determines the kind of annotations you see on webpages. By
default, the view mode button, since rarely used, is hidden in the pull-down
menu under the Diigo button, and can
also be set to show on the toolbar, as below:

When set to "All", which is the default, you can see all highlights and sticky notes. When
set to "PRIVATE",
you will only see your own highlights and private sticky notes. When set to "DISABLE",
you will see the original page without any highlights or sticky notes.