To categorize files into folders, you can first create a folder by clicking the + icon next to the Projects option here, then add a folder name, and then click Create:
Once you have your folder created, click on the Uncategorized Files folder to see the files inside it. Then click the 3 vertical dots to the right of the file name to open the file menu. In the file menu, you can choose to copy your file to a folder, which will create a duplicate file, or you can move the file to the new folder, which will remove it from the Uncategorized Files folder to the one you created.
If you have any trouble, please reach out to our support by clicking the bubble in the bottom right-hand corner and then clicking Send us a message, or you can email us at [email protected]. We're always happy to help!