DisableLinks advanced setting (off by default): when on, links in the document are ignored, so you can select text and read without following them by accident. This helps with drawings and schematics that are full of links. Turn it on or off with Toggle Disable Links (CmdToggleDisableLinks) in the command palette. The existing Toggle Show Links only outlines links in blue and does not disable them (#5939).IgnoreDestinationZoom advanced setting: when true, clicking a bookmark or an in-document link still goes to the target page and position, but keeps your current zoom instead of switching to the zoom the link asks for. Adobe Reader and Foxit have the same option. Off by default (discussion #5938).CmdToggleHoverPreview) in the command palette turns the citation/reference hover popup on or off.