ModSnmp Manual v3.09 - 7.4. Reordering Devices
Device definitions can be reordered in the Devices page.
To move one or more device definitions, select them and then drag-and-drop them to the required position using the mouse.
To move device definitions using the keyboard, select them and type Ctrl-X. Use the arrow keys to move to the required position and then type Ctrl-V.
If you are moving more than one device definition, the definitions must be next to each other in the table.