How do I add a main folder on mobile in Shared Files?

1. After entering the Shared Files page, tap the + Add Main Folder button centered at the top of the page. 2. Enter the folder name and confirm to create it. The new folder will appear in the list. 3. To rename or delete an existing folder, tap the three-dot menu (⋮) on the right side of that folder row and select the corresponding action.