The fourth panel in Highland’s Sidebar is Assets.
If the sidebar is not visible, go to View > Toggle Sidebar or press Command + 0. Assets can be accessed by selecting the [assets-icon] or by pressing Command + 4.
As you include files and images in your document, Highland adds them to you Assets panel. Quickly reuse assets by dragging them into your document. Highland automatically creates the correct syntax for images or files.
Highland will keep the assets available even if they are removed from your document. To remove one completely, select it in the Assets panel and press the X button.
Highland will also highlight which assets are currently used in the document.