You will need to download a Settings Editor such as DreamBoxEdit from the forum.Set it up to connect to your box & download your bouquets & then you can sort them as you wish & then upload back to stb & reboot.
To back up your channels use the option in Software Management "Backup System Settings" on your stb & that will back up to USB or HDD.
If you use a settings editor you will also have a backup on your pc.