To Add Branches to Your Map: 

1. Tap on your central idea or an existing branch to show the green plus icons.

2. Simply tap on the + icon or drag to draw your branch.

3. The new branch will appear and you can immediately type your branch text.

4. Tap enter when done.

Adding a Sibling Branch:

When you tap on a branch, you will see the option to make a sibling branch. A sibling branch is a where two branches share the same parent branch. 

Tap on the green arrow to add the sibling branch.

 A new branch will appear next to it off the same parent branch. Type in your branch text and hit Enter when done.