If you want to collect your favorite chapters or novels while reading the novel on the 19th floor mobile version, you can follow the following steps: 1. Open the mobile novel page on the 19th floor and select the novel you want to add to your collection. 2. click on the "More" button at the bottom of the novel page to enter the details page; 3. In the details page, find the novel chapter or click the "Favorites" button on the page. 4. After selecting the "Collect" button, the system will prompt you to choose a location to save it. You can choose to save it locally or in the cloud. 5 After confirming the location, click the "Favorites" button to save the selected chapter or novel to the Favorites list. It should be noted that the collection function of the mobile version of the novel on the 19th floor supports a variety of format collections, including txt, umd, chm, etc., so you can choose to save the format according to your preferences. In addition, if you want to conveniently view your favorite novels, you can open the "My Bookshelf" function of the mobile app on the 19th floor to view your saved novels.