Single Tap again on an already selected topic node to bring up the topic tool bar. The topic tool bar contains these topic related commands (from left to right):

• Cut - cuts the selected topic and its children to the clipboard
• Copy - copies the selected topic and its children to the clipboard.
• Paste - inserts topics previously cut or copied to the clipboard. The pasted topics are added as child to the selected topic. This command is only available after copying or cutting and not visible in the above image
• Select Color - select a fill and line color from the selected style's Color Palette (top row) or a (predefined) custom color (bottom row).
  Also, the color selector allows reverting the topic to the selected style's color scheme.
• Layout - rearranges child topics to default locations
• Add Cross link
• Select Icon - select (or clear) a predefined icon for a topic.
• Link to Mind Map - add (or remove) a hyperlink to another Mind Map. A navigation icon is displayed to the right of the linked topic. Tap this navigation icon
  to open the linked Mind Map. The topic's text is auto-linked to the linked Mind Map's title. Editing the topic's text breaks this auto-linking without removing the navigation icon.