There are two ways to move your notes in folders.
In Note List page, touch button.
“Manage Items” view appears. Touch notes’ titles which you like to move. Touch “Move” button.
"Move Items" page appears. Choose the destination folder by touching the name.
If the color of the folder name is red, you can’t move items to that destination. Because that folder is currently selected to move, or parent of selected folders.
Open your note, then touch button.
Touch "to other folder".
"Move Items" page appears. Touch a destination folder.
If you like to move many items at once, ① is convenient. ② is good if you like to choose destination after looking inside of note.