The application is divided into two main areas:

The left panel lets you navigate through the help file.

At the bottom of this panel, you’ll find several buttons:

• 📖 Hierarchical TOC (Table of Contents) tree
  (visible if defined by the help author)
• 🔖 Subchapter list
  (shown if the current chapter has subchapters)
• 📇 Keywords list / Glossary
  (visible if defined by the help author)
• 🔎 Fulltext keywords list
  (visible if defined by the help author or the indexing functionality is active)

These items are displayed as an expandable tree with clickable nodes. Clicking on an item expands its subcontent or opens the selected chapter.
📇 and 🔎 have an input field at the top where you can search for an exact phrase.
Just start typing and press Enter to search.
Press Esc to clear the field.

• 🏡 Go to the help file’s homepage (README.md)

• 🌐 UI Language selection
• 🕘 Search for other version (of help file) (Internet connection required)
• 🎨 Switch color mode
  (color, greyscale, white to black, black to white, sepia)
• 📚 Show all chapters as book
  (after selecting page breaks and the method of printing Unicode icons in the text, simply click the button a second time and the result will be displayed)
  (only chapters displayed in the topic tree, the help home page, and chapters referenced in the text are included in the output)
• ✏️ Notes
  Allows you to add, manage, and toggle the display (👁️) or hiding (🙈) of user notes. Notes can be deleted by simply erasing their content. Those displayed on the screen are automatically included in the printout. They are only displayed when browsing individual chapters. Notes are stored only in your environment and no one else has access to them. However, if you switch to a different language or newer version of the same help file, your notes will also be displayed in it.
• ↔ Move (toggle) sidebar to left/right
• 🔲 Toggle UI to/from fullscreen
• 📽 Presentation mode
  (full screen mode (🔲), keys ⬅, ⬆, ➡, ⬇ are used to switch between chapters/slides)
• 🌈 Select style
  (you can select a different application style from the drop-down list)
• ❌︎ Close left sidebar

The right panel displays the main content area:

• Current chapter/topic content

• Chapter title in the upper bar

• Action buttons:

  • ☰ Show left panel back
    (if hidden)
  • 🖨️ Print current chapter
  • ⬅ Go to the previous chapter
  • ⬆ Go one level up
  • ➡ Go to the next chapter
  • 📝 Edit in repository
  • 📥 Export the current chapter or all chapters

There are several reasons why certain elements may not appear:

The 📥 Custom package feature allows you to customise most of the functionality. If it was used when downloading the application, some features may be unavailable.

The application remembers your preferences using local storage:

The ✏️ Notes module stores its data in the web browser's IndexedDB storage (database: HelpViewer).

Append ?d={path} to the viewer's URL to open a custom help file. If omitted, the default file hlp/Help-{selected language}.zip will be loaded automatically. If the language is specified with __ (two underscores), the selected UI language from the user configuration will be used.

The following are valid path formats that end with:

• .zip - zip help file
• / - directory on your disk or network URI address

If your administrator has installed the HelpViewer plugin in Chrome/Edge (Chromium) and the application is configured correctly, you can get quick contextual help by right-clicking on an element and selecting ❔ ("What's this?").

If this option is not available, the plugin or configuration on the application side is missing.
If no chapter or text is displayed, the description of the element is missing from the help.

Modern web browsers include built-in features such as: