CmdGoToHomePage, command palette) switches to the Home tab. With NoHomeTab = true there is no Home tab, so the command adds one as the first tab; close it with its ✕ (#6228).Alt + Left (or Backspace) takes you back there (#6230).CmdToggleFreePan, command palette) lets you scroll past the page edges by half a window. Any part of a page, such as a corner of a technical drawing, can then be moved to the center of the screen instead of staying at the window edge. Zoom and page placement don’t change; it only adds room to scroll. It’s remembered per document and has no default shortcut (discussions #6224, #6164).CmdOpenSettingsFile, Settings menu, command palette) opens the settings file in your text editor. CmdAdvancedOptions is gone, but a shortcut that uses it still opens Advanced Settings. The command palette lists some commands under a second name: Advanced Settings… also as Advanced Options…, and Browse Files In Folder… also as Navigate Files in Folder….
= mode, the description of the selected setting is shown under the list, as in Advanced Settings.
Alt + Left / Alt + Right) go through the folders you visited, Up (Alt + Up, Backspace or the .. entry) goes to the parent folder, and Home lists your drives followed by Explorer’s Quick access folders and files. A search field filters the list as you type (press Ctrl + F, or just start typing). Click the folder path to edit it, or paste a path: Enter goes there, and a file path opens its folder with the file selected (#6232).Book.jpg, .jpeg or .png beside Book.epub, the way Calibre saves covers), or else the cover an EPUB declares, instead of a picture of page 1 (#6236).