Double tap a topic to edit the topic text. Stop editing by tapping outside the text editor or press escape.

Split topics by double tapping the topic. Next use the cursor to mark where you want to split the topic and use Shift+Tab to create a new sibling topic.

Mac and Windows and iPad&iPhone: Extract text as a new topic. Select the text, use Right click (or Secondary Click) to select “Extract” so you can create a new sibling, child or parent. On iPad and iPhone, select text and use the Edit Menu to select "Extract".

Tip: Read about formatting text (bold, italic and more) or adding line-breaks (enters).