To move topics between folders, begin by accessing the topic management screen which can be accessed in one of three ways.
1 - By clicking "manage" above the topic list on the filter menu on the left of the screen. [NOTE: This view isn't available on mobile]
2 - By clicking on "manage my topics" at the top of the drop-down topic menu from the main navigation bar.
3 - By clicking into your account menu, then selecting, "Topics".
Once you've navigated to the topic management screen, you can move a topic(s) by selecting the topic(s) you wish to move and clicking "Move Topics".
Note: If you don't currently have any folders, you will need to create your first one before being able to transfer them into a new folder.
Complete the process by selecting the new folder in which you'd like your topics to live.