If you don't want to move pages one by one, you can choose to move them in bulk following three steps.
Step 1. Go to the left sidebar and click the category where the pages belong.
Step 2. Inside the category, click the check box on the upper right side. This will allow you to tick the box that corresponds to the pages you want to move. After you have selected the pages, click MOVE on the upper left side.
Step 3. Complete the form and click Move.
